cve-2016-1908
Vulnerability from cvelistv5
Published
2017-04-11 00:00
Modified
2024-08-05 23:10
Severity
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
SourceURLTags
secalert@redhat.comhttp://openwall.com/lists/oss-security/2016/01/15/13Mailing List, Third Party Advisory
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-0465.htmlThird Party Advisory
secalert@redhat.comhttp://rhn.redhat.com/errata/RHSA-2016-0741.htmlThird Party Advisory
secalert@redhat.comhttp://www.openssh.com/txt/release-7.2Release Notes, Vendor Advisory
secalert@redhat.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/84427Third Party Advisory, VDB Entry
secalert@redhat.comhttp://www.securitytracker.com/id/1034705Broken Link, Third Party Advisory, VDB Entry
secalert@redhat.comhttps://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416cPatch, Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1298741Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2018/09/msg00010.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/201612-18Third Party Advisory
Impacted products
VendorProduct
n/an/a
Show details on NVD website

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",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2016-1908\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2017-04-11T18:59:00.167\",\"lastModified\":\"2022-12-13T12:15:20.430\",\"vulnStatus\":\"Modified\",\"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.\"},{\"lang\":\"es\",\"value\":\"El cliente en OpenSSH en versiones anteriores a 7.2 no maneja correctamente fall\u00f3 en la generaci\u00f3n de cookies para el reenv\u00edo X11 no confiable y conf\u00eda en el servidor X11 local para las decisiones de control de acceso, lo que permite a los clientes remotos X11 activar un fallback y obtener privilegios de reenv\u00edo X11 confiables aprovechando los problemas de configuraci\u00f3n de este servidor X11, como lo demuestra la falta de la extensi\u00f3n SECURITY en este servidor X11.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":7.5},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-287\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"7.2\",\"matchCriteriaId\":\"4A62EB95-81D2-4D9A-9214-D9329622C4D5\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:oracle:linux:6:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"D7B037A8-72A6-4DFF-94B2-D688A5F6F876\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"44B8FEDF-6CB0-46E9-9AD7-4445B001C158\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EE249E1B-A1FD-4E08-AA71-A0E1F10FFE97\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"33C068A4-3780-4EAB-A937-6082DF847564\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_eus:7.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AE1D81A1-CD24-4B17-8AFD-DC95E90AD7D0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"807C024A-F8E8-4B48-A349-4C68CD252CA1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F96E3779-F56A-45FF-BB3D-4980527D721E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CF73560-2F5B-4723-A8A1-9AADBB3ADA00\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5BF3C7A5-9117-42C7-BEA1-4AA378A582EF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"83737173-E12E-4641-BC49-0BD84A6B29D0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9BBCD86A-E6C7-4444-9D74-F861084090F0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"51EF4996-72F4-4FA4-814F-F5991E7A8318\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1C8D871B-AEA1-4407-AEE3-47EC782250FF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"98381E61-F082-4302-B51F-5648884F998B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D99A687E-EAE6-417E-A88E-D0082BC194CD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B353CE99-D57C-465B-AAB0-73EF581127D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7431ABC1-9252-419E-8CC1-311B41360078\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6755B6AD-0422-467B-8115-34A60B1D1A40\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"24C0F4E1-C52C-41E0-9F14-F83ADD5CC7ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B76AA310-FEC7-497F-AF04-C3EC1E76C4CC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F256A9-D3B9-4C72-B013-4EFD878BFEA8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E5ED5807-55B7-47C5-97A6-03233F4FBC3A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"825ECE2D-E232-46E0-A047-074B34DB1E97\"}]}]}],\"references\":[{\"url\":\"http://openwall.com/lists/oss-security/2016/01/15/13\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2016-0465.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2016-0741.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.openssh.com/txt/release-7.2\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/84427\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securitytracker.com/id/1034705\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=1298741\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201612-18\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.