cnvd - cnvd-2016-01730

cnvd-2016-01730

Vulnerability from cnvd

Title: OpenSSH身份验证漏洞

Description:

OpenSSH（OpenBSD Secure Shell）是OpenBSD计划组所维护的一套用于安全访问远程计算机的连接工具。该工具是SSH协议的开源实现，支持对所有的传输进行加密，可有效阻止窃听、连接劫持以及其他网络级的攻击。

OpenSSH中存在安全漏洞，该漏洞源于OpenSSH客户端未能正确为不可信的X11转发生成身份验证cookie。攻击者可利用该漏洞与本地X服务器建立可信连接。

Severity: 中

Patch Name: OpenSSH身份验证漏洞的补丁

Patch Description:

OpenSSH中存在安全漏洞，该漏洞源于OpenSSH客户端未能正确为不可信的X11转发生成身份验证cookie。攻击者可利用该漏洞与本地X服务器建立可信连接。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-7.2

Reference: http://www.openwall.com/lists/oss-security/2016/03/16/5

Impacted products

Name
OpenSSH OpenSSH

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-1908"
    }
  },
  "description": "OpenSSH\uff08OpenBSD Secure Shell\uff09\u662fOpenBSD\u8ba1\u5212\u7ec4\u6240\u7ef4\u62a4\u7684\u4e00\u5957\u7528\u4e8e\u5b89\u5168\u8bbf\u95ee\u8fdc\u7a0b\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u5de5\u5177\u3002\u8be5\u5de5\u5177\u662fSSH\u534f\u8bae\u7684\u5f00\u6e90\u5b9e\u73b0\uff0c\u652f\u6301\u5bf9\u6240\u6709\u7684\u4f20\u8f93\u8fdb\u884c\u52a0\u5bc6\uff0c\u53ef\u6709\u6548\u963b\u6b62\u7a83\u542c\u3001\u8fde\u63a5\u52ab\u6301\u4ee5\u53ca\u5176\u4ed6\u7f51\u7edc\u7ea7\u7684\u653b\u51fb\u3002\r\n\r\nOpenSSH\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eOpenSSH\u5ba2\u6237\u7aef\u672a\u80fd\u6b63\u786e\u4e3a\u4e0d\u53ef\u4fe1\u7684X11\u8f6c\u53d1\u751f\u6210\u8eab\u4efd\u9a8c\u8bc1cookie\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4e0e\u672c\u5730X\u670d\u52a1\u5668\u5efa\u7acb\u53ef\u4fe1\u8fde\u63a5\u3002",
  "discovererName": "Tomas Hoger",
  "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-7.2",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-01730",
  "openTime": "2016-03-18",
  "patchDescription": "OpenSSH\uff08OpenBSD Secure Shell\uff09\u662fOpenBSD\u8ba1\u5212\u7ec4\u6240\u7ef4\u62a4\u7684\u4e00\u5957\u7528\u4e8e\u5b89\u5168\u8bbf\u95ee\u8fdc\u7a0b\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u5de5\u5177\u3002\u8be5\u5de5\u5177\u662fSSH\u534f\u8bae\u7684\u5f00\u6e90\u5b9e\u73b0\uff0c\u652f\u6301\u5bf9\u6240\u6709\u7684\u4f20\u8f93\u8fdb\u884c\u52a0\u5bc6\uff0c\u53ef\u6709\u6548\u963b\u6b62\u7a83\u542c\u3001\u8fde\u63a5\u52ab\u6301\u4ee5\u53ca\u5176\u4ed6\u7f51\u7edc\u7ea7\u7684\u653b\u51fb\u3002\r\n\r\nOpenSSH\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eOpenSSH\u5ba2\u6237\u7aef\u672a\u80fd\u6b63\u786e\u4e3a\u4e0d\u53ef\u4fe1\u7684X11\u8f6c\u53d1\u751f\u6210\u8eab\u4efd\u9a8c\u8bc1cookie\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4e0e\u672c\u5730X\u670d\u52a1\u5668\u5efa\u7acb\u53ef\u4fe1\u8fde\u63a5\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\u8eab\u4efd\u9a8c\u8bc1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "OpenSSH OpenSSH"
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2016/03/16/5",
  "serverity": "\u4e2d",
  "submitTime": "2016-03-17",
  "title": "OpenSSH\u8eab\u4efd\u9a8c\u8bc1\u6f0f\u6d1e"
}

CVE-2016-1908 (GCVE-0-2016-1908)

Vulnerability from cvelistv5

Published

2017-04-11 00:00

Modified

2024-08-05 23:10

Severity ?

CWE

Summary

The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11 server, as demonstrated by lack of the SECURITY extension on this X11 server.

References

▼	URL	Tags
	http://www.openssh.com/txt/release-7.2
	http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
	https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c
	http://openwall.com/lists/oss-security/2016/01/15/13	mailing-list
	http://www.securitytracker.com/id/1034705	vdb-entry
	http://rhn.redhat.com/errata/RHSA-2016-0741.html	vendor-advisory
	https://security.gentoo.org/glsa/201612-18	vendor-advisory
	https://bugzilla.redhat.com/show_bug.cgi?id=1298741
	https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html	mailing-list
	http://www.securityfocus.com/bid/84427	vdb-entry
	http://rhn.redhat.com/errata/RHSA-2016-0465.html	vendor-advisory
	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": "2024-08-05T23:10:40.244Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.openssh.com/txt/release-7.2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c"
          },
          {
            "name": "[oss-security] 20160115 Re: Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2016/01/15/13"
          },
          {
            "name": "1034705",
            "tags": [
              "vdb-entry",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1034705"
          },
          {
            "name": "RHSA-2016:0741",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-0741.html"
          },
          {
            "name": "GLSA-201612-18",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201612-18"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1298741"
          },
          {
            "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"
          },
          {
            "name": "84427",
            "tags": [
              "vdb-entry",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/84427"
          },
          {
            "name": "RHSA-2016:0465",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-0465.html"
          },
          {
            "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": "2016-01-14T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11 server, as demonstrated by lack of the SECURITY extension on this X11 server."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-12-13T00:00:00",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "http://www.openssh.com/txt/release-7.2"
        },
        {
          "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
        },
        {
          "url": "https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c"
        },
        {
          "name": "[oss-security] 20160115 Re: Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778",
          "tags": [
            "mailing-list"
          ],
          "url": "http://openwall.com/lists/oss-security/2016/01/15/13"
        },
        {
          "name": "1034705",
          "tags": [
            "vdb-entry"
          ],
          "url": "http://www.securitytracker.com/id/1034705"
        },
        {
          "name": "RHSA-2016:0741",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-0741.html"
        },
        {
          "name": "GLSA-201612-18",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/201612-18"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1298741"
        },
        {
          "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"
        },
        {
          "name": "84427",
          "tags": [
            "vdb-entry"
          ],
          "url": "http://www.securityfocus.com/bid/84427"
        },
        {
          "name": "RHSA-2016:0465",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-0465.html"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2016-1908",
    "datePublished": "2017-04-11T00:00:00",
    "dateReserved": "2016-01-15T00:00:00",
    "dateUpdated": "2024-08-05T23:10:40.244Z",
    "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.

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