{
  "document": {
    "acknowledgments": [
      {
        "summary": "Cisco would like to thank Qingtang Zheng of 360 ESG CodeSafe Team for reporting this vulnerability."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, Cisco RV130W Wireless-N Multifunction VPN Router, and Cisco RV215W Wireless-N VPN Router could allow an unauthenticated, remote attacker to cause a denial of service condition or to execute arbitrary code.\r\n\r\nThe vulnerability is due to improper boundary restrictions on user-supplied input in the Guest user feature of the web-based management interface. An attacker could exploit this vulnerability by sending malicious requests to a targeted device, triggering a buffer overflow condition. A successful exploit could allow the attacker to cause the device to stop responding, resulting in a denial of service condition, or could allow the attacker to execute arbitrary code.\r\n\r\n\r\nCisco has released software updates that address this vulnerability. There 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-20180905-rv-routers-overflow [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-rv-routers-overflow\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affects all releases of the following Cisco products:\r\nRV110W Wireless-N VPN Firewall\r\nRV130W Wireless-N Multifunction VPN Router\r\nRV215W Wireless-N VPN Router\r\n\r\nDevices are vulnerable only when the Guest user of the web-based management interface is enabled. The web-based management interface for these devices is available via a local LAN connection or via the remote management feature.\r\n\r\nBy default, the remote management feature is disabled for the affected devices. To determine whether the remote management feature is enabled, open the web-based management interface for a device via a local LAN connection and then choose Basic Settings \u003e Remote Management. If the Enable check box is checked, remote management is enabled for the device.\r\nThe Guest user is also disabled by default. To determine whether the Guest user has been enabled, open the web-based management interface for a device and then choose Administration \u003e Users. In the Account Activation field, verify that the Guest user is inactive.",
        "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. However, administrators may disable the Guest user account or remote management feature if not required.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "For the Cisco RV130W Wireless-N Multifunction VPN Router, Cisco has released free firmware updates that address the vulnerability described in this advisory.\r\n  For the Cisco RV110W Wireless-N VPN Firewall and Cisco RV215W Wireless-N VPN Router, Cisco has not released and will not release firmware updates that address the vulnerability described in this advisory.\r\nCustomers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\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.\r\n  Customers Without Service Contracts\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC:\r\nhttps://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n  Fixed Releases\r\nCisco fixed this vulnerability in firmware release 1.0.3.44 for the Cisco RV130W Wireless-N Multifunction VPN Router.\r\n\r\nCustomers can download firmware updates from the Software Center [\"http://www.cisco.com/cisco/software/navigator.html\"] on Cisco.com by doing the following:\r\n\r\nClick Browse all.\r\nNavigate to Routers \u003e Small Business Routers \u003e Small Business RV Series Routers \u003e RV130W Wireless-N Multifunction VPN Router \u003e Small Business Router Firmware.\r\nAccess releases by using the left pane of the RV130W Wireless-N Multifunction VPN Router page.",
        "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 not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank Qingtang Zheng of 360 ESG CodeSafe Team for reporting this vulnerability.",
        "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"
      }
    ],
    "publisher": {
      "category": "vendor",
      "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.",
      "issuing_authority": "Cisco product security incident response is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks. The on-call Cisco PSIRT works 24x7 with Cisco customers, independent security researchers, consultants, industry organizations, and other vendors to identify possible security issues with Cisco products and networks.\r\nMore information can be found in Cisco Security Vulnerability Policy available at https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco RV110W, RV130W, and RV215W Routers Management Interface Buffer Overflow Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-rv-routers-overflow"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-rv-routers-overflow",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-rv-routers-overflow"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html",
        "url": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories and Alerts page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html",
        "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"
      },
      {
        "category": "external",
        "summary": "Software Center",
        "url": "http://www.cisco.com/cisco/software/navigator.html"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco RV110W, RV130W, and RV215W Routers Management Interface Buffer Overflow Vulnerability",
    "tracking": {
      "current_release_date": "2018-09-05T16:00:00+00:00",
      "generator": {
        "date": "2022-09-03T03:08:22+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-20180905-rv-routers-overflow",
      "initial_release_date": "2018-09-05T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2018-09-05T15:10:45+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco RV130W Wireless-N Multifunction VPN Router Firmware",
            "product": {
              "name": "Cisco RV130W Wireless-N Multifunction VPN Router Firmware ",
              "product_id": "CSAFPID-212336"
            }
          },
          {
            "category": "product_family",
            "name": "Cisco RV110W Wireless-N VPN Firewall Firmware",
            "product": {
              "name": "Cisco RV110W Wireless-N VPN Firewall Firmware ",
              "product_id": "CSAFPID-212341"
            }
          },
          {
            "category": "product_family",
            "name": "Cisco RV215W Wireless-N VPN Router Firmware",
            "product": {
              "name": "Cisco RV215W Wireless-N VPN Router Firmware ",
              "product_id": "CSAFPID-212498"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-0423",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvj23206"
        },
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvj42729"
        },
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvj42727"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-212336",
          "CSAFPID-212498",
          "CSAFPID-212341"
        ]
      },
      "release_date": "2018-09-05T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-212336",
            "CSAFPID-212341",
            "CSAFPID-212498"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-212336",
            "CSAFPID-212498",
            "CSAFPID-212341"
          ]
        }
      ],
      "title": "Cisco RV110W, RV130W, and RV215W Routers Management Interface Buffer Overflow Vulnerability"
    }
  ]
}