cnvd - cnvd-2015-05761

cnvd-2015-05761

Vulnerability from cnvd

Title: OpenSSH sshd monitor组件输入验证漏洞

Description:

OpenSSH（OpenBSD Secure Shell）on non-OpenBSD platforms是OpenBSD计划组所维护的一套运行于非OpenBSD（基于BSD的UNIX实现）平台且用于安全访问远程计算机的连接工具。

基于non-OpenBSD平台的OpenSSH 6.9及之前版本的sshd中的monitor组件中存在安全漏洞，该漏洞源于程序错误的接收MONITOR_REQ_PAM_INIT_CTX请求中的外部用户名数据。本地攻击者可通过SSH登录访问并控制sshd uid向MONITOR_REQ_PWNAM发送特制的请求，利用该漏洞实施伪造攻击。

Severity: 低

Patch Name: OpenSSH sshd monitor组件输入验证漏洞的补丁

Patch Description:

OpenSSH（OpenBSD Secure Shell）on non-OpenBSD platforms是OpenBSD计划组所维护的一套运行于非OpenBSD（基于BSD的UNIX实现）平台且用于安全访问远程计算机的连接工具。基于non-OpenBSD平台的OpenSSH 6.9及之前版本的sshd中的monitor组件中存在安全漏洞，该漏洞源于程序错误的接收MONITOR_REQ_PAM_INIT_CTX请求中的外部用户名数据。本地攻击者可通过SSH登录访问并控制sshd uid向MONITOR_REQ_PWNAM发送特制的请求，利用该漏洞实施伪造攻击。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： http://www.openssh.com/txt/release-7.0

Reference: http://www.openwall.com/lists/oss-security/2015/08/22/1 http://seclists.org/fulldisclosure/2015/Aug/54

Impacted products

Name
Openssh OpenSSH <=6.9

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-6563"
    }
  },
  "description": "OpenSSH\uff08OpenBSD Secure Shell\uff09on non-OpenBSD platforms\u662fOpenBSD\u8ba1\u5212\u7ec4\u6240\u7ef4\u62a4\u7684\u4e00\u5957\u8fd0\u884c\u4e8e\u975eOpenBSD\uff08\u57fa\u4e8eBSD\u7684UNIX\u5b9e\u73b0\uff09\u5e73\u53f0\u4e14\u7528\u4e8e\u5b89\u5168\u8bbf\u95ee\u8fdc\u7a0b\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u5de5\u5177\u3002\r\n\r\n\u57fa\u4e8enon-OpenBSD\u5e73\u53f0\u7684OpenSSH 6.9\u53ca\u4e4b\u524d\u7248\u672c\u7684sshd\u4e2d\u7684monitor\u7ec4\u4ef6\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u9519\u8bef\u7684\u63a5\u6536MONITOR_REQ_PAM_INIT_CTX\u8bf7\u6c42\u4e2d\u7684\u5916\u90e8\u7528\u6237\u540d\u6570\u636e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u901a\u8fc7SSH\u767b\u5f55\u8bbf\u95ee\u5e76\u63a7\u5236sshd uid\u5411MONITOR_REQ_PWNAM\u53d1\u9001\u7279\u5236\u7684\u8bf7\u6c42\uff0c\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u65bd\u4f2a\u9020\u653b\u51fb\u3002",
  "discovererName": "OpenSSH",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://www.openssh.com/txt/release-7.0",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-05761",
  "openTime": "2015-09-01",
  "patchDescription": "OpenSSH\uff08OpenBSD Secure Shell\uff09on non-OpenBSD platforms\u662fOpenBSD\u8ba1\u5212\u7ec4\u6240\u7ef4\u62a4\u7684\u4e00\u5957\u8fd0\u884c\u4e8e\u975eOpenBSD\uff08\u57fa\u4e8eBSD\u7684UNIX\u5b9e\u73b0\uff09\u5e73\u53f0\u4e14\u7528\u4e8e\u5b89\u5168\u8bbf\u95ee\u8fdc\u7a0b\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u5de5\u5177\u3002\u57fa\u4e8enon-OpenBSD\u5e73\u53f0\u7684OpenSSH 6.9\u53ca\u4e4b\u524d\u7248\u672c\u7684sshd\u4e2d\u7684monitor\u7ec4\u4ef6\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u9519\u8bef\u7684\u63a5\u6536MONITOR_REQ_PAM_INIT_CTX\u8bf7\u6c42\u4e2d\u7684\u5916\u90e8\u7528\u6237\u540d\u6570\u636e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u901a\u8fc7SSH\u767b\u5f55\u8bbf\u95ee\u5e76\u63a7\u5236sshd uid\u5411MONITOR_REQ_PWNAM\u53d1\u9001\u7279\u5236\u7684\u8bf7\u6c42\uff0c\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u65bd\u4f2a\u9020\u653b\u51fb\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "OpenSSH sshd monitor\u7ec4\u4ef6\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Openssh OpenSSH  \u003c=6.9"
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2015/08/22/1\r\nhttp://seclists.org/fulldisclosure/2015/Aug/54",
  "serverity": "\u4f4e",
  "submitTime": "2015-08-25",
  "title": "OpenSSH sshd monitor\u7ec4\u4ef6\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e"
}

CVE-2015-6563 (GCVE-0-2015-6563)

Vulnerability from cvelistv5

Published

2015-08-24 00:00

Modified

2024-08-06 07:22

Severity ?

CWE

Summary

The monitor component in sshd in OpenSSH before 7.0 on non-OpenBSD platforms accepts extraneous username data in MONITOR_REQ_PAM_INIT_CTX requests, which allows local users to conduct impersonation attacks by leveraging any SSH login access in conjunction with control of the sshd uid to send a crafted MONITOR_REQ_PWNAM request, related to monitor.c and monitor_wrap.c.

References

▼	URL	Tags
	http://www.openwall.com/lists/oss-security/2015/08/22/1	mailing-list
	http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html	vendor-advisory
	http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html	vendor-advisory
	https://support.apple.com/HT205375
	http://www.securityfocus.com/bid/76317	vdb-entry
	https://github.com/openssh/openssh-portable/commit/d4697fe9a28dab7255c60433e4dd23cf7fce8a8b
	http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
	https://security.gentoo.org/glsa/201512-04	vendor-advisory
	http://www.openssh.com/txt/release-7.0
	http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
	http://rhn.redhat.com/errata/RHSA-2016-0741.html	vendor-advisory
	http://seclists.org/fulldisclosure/2015/Aug/54	mailing-list
	http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
	http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html	vendor-advisory
	https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html	mailing-list
	https://security.netapp.com/advisory/ntap-20180201-0002/
	https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-766
	https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T07:22:22.366Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20150821 Re: CVE request - OpenSSH 6.9 PAM privilege separation vulnerabilities",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2015/08/22/1"
          },
          {
            "name": "FEDORA-2015-13469",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html"
          },
          {
            "name": "APPLE-SA-2015-10-21-4",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://support.apple.com/HT205375"
          },
          {
            "name": "76317",
            "tags": [
              "vdb-entry",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/76317"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openssh/openssh-portable/commit/d4697fe9a28dab7255c60433e4dd23cf7fce8a8b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
          },
          {
            "name": "GLSA-201512-04",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201512-04"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.openssh.com/txt/release-7.0"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
          },
          {
            "name": "RHSA-2016:0741",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-0741.html"
          },
          {
            "name": "20150813 BFS-SA-2015-002: OpenSSH PAM Privilege Separation Vulnerabilities",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2015/Aug/54"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html"
          },
          {
            "name": "SUSE-SU-2015:1581",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html"
          },
          {
            "name": "[debian-lts-announce] 20180910 [SECURITY] [DLA 1500-1] openssh security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20180201-0002/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-766"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2015-08-01T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "The monitor component in sshd in OpenSSH before 7.0 on non-OpenBSD platforms accepts extraneous username data in MONITOR_REQ_PAM_INIT_CTX requests, which allows local users to conduct impersonation attacks by leveraging any SSH login access in conjunction with control of the sshd uid to send a crafted MONITOR_REQ_PWNAM request, related to monitor.c and monitor_wrap.c."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-12-13T00:00:00",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "[oss-security] 20150821 Re: CVE request - OpenSSH 6.9 PAM privilege separation vulnerabilities",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2015/08/22/1"
        },
        {
          "name": "FEDORA-2015-13469",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html"
        },
        {
          "name": "APPLE-SA-2015-10-21-4",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html"
        },
        {
          "url": "https://support.apple.com/HT205375"
        },
        {
          "name": "76317",
          "tags": [
            "vdb-entry"
          ],
          "url": "http://www.securityfocus.com/bid/76317"
        },
        {
          "url": "https://github.com/openssh/openssh-portable/commit/d4697fe9a28dab7255c60433e4dd23cf7fce8a8b"
        },
        {
          "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
        },
        {
          "name": "GLSA-201512-04",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/201512-04"
        },
        {
          "url": "http://www.openssh.com/txt/release-7.0"
        },
        {
          "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
        },
        {
          "name": "RHSA-2016:0741",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-0741.html"
        },
        {
          "name": "20150813 BFS-SA-2015-002: OpenSSH PAM Privilege Separation Vulnerabilities",
          "tags": [
            "mailing-list"
          ],
          "url": "http://seclists.org/fulldisclosure/2015/Aug/54"
        },
        {
          "url": "http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html"
        },
        {
          "name": "SUSE-SU-2015:1581",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html"
        },
        {
          "name": "[debian-lts-announce] 20180910 [SECURITY] [DLA 1500-1] openssh security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20180201-0002/"
        },
        {
          "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-766"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2015-6563",
    "datePublished": "2015-08-24T00:00:00",
    "dateReserved": "2015-08-21T00:00:00",
    "dateUpdated": "2024-08-06T07:22:22.366Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted