FKIE_CVE-2015-5352

Vulnerability from fkie_nvd - Published: 2015-08-03 01:59 - Updated: 2026-06-17 00:28
Severity
Summary
The x11_open_helper function in channels.c in ssh in OpenSSH before 6.9, when ForwardX11Trusted mode is not used, lacks a check of the refusal deadline for X connections, which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
cve@mitre.orghttp://openwall.com/lists/oss-security/2015/07/01/10
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2016-0741.html
cve@mitre.orghttp://www.openssh.com/txt/release-6.9Vendor Advisory
cve@mitre.orghttp://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
cve@mitre.orghttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
cve@mitre.orghttp://www.securityfocus.com/bid/75525
cve@mitre.orghttp://www.securitytracker.com/id/1032797
cve@mitre.orghttp://www.ubuntu.com/usn/USN-2710-1
cve@mitre.orghttp://www.ubuntu.com/usn/USN-2710-2
cve@mitre.orghttps://anongit.mindrot.org/openssh.git/commit/?h=V_6_9&id=1bf477d3cdf1a864646d59820878783d42357a1d
cve@mitre.orghttps://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
cve@mitre.orghttps://security.gentoo.org/glsa/201512-04
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20181023-0001/
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2015/07/01/10
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2016-0741.html
af854a3a-2127-422b-91ae-364da2661108http://www.openssh.com/txt/release-6.9Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/75525
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1032797
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2710-1
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2710-2
af854a3a-2127-422b-91ae-364da2661108https://anongit.mindrot.org/openssh.git/commit/?h=V_6_9&id=1bf477d3cdf1a864646d59820878783d42357a1d
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201512-04
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20181023-0001/
Impacted products
Vendor Product Version
openbsd openssh *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "00FCC2D9-B74F-4D36-BF64-B146A3976F2B",
              "versionEndIncluding": "6.8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The x11_open_helper function in channels.c in ssh in OpenSSH before 6.9, when ForwardX11Trusted mode is not used, lacks a check of the refusal deadline for X connections, which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad en la funci\u00f3n x11_open_helper en channels.c en ssh en OpenSSH en versiones anteriores a 6.9, cuando no se utiliza el modo ForwardX11Trusted, carece de una verificaci\u00f3n de tiempo l\u00edmite para conexiones X, lo que facilita a atacantes remotos eludir la restricci\u00f3n destinada al acceso a trav\u00e9s de una conexi\u00f3n fuera de la ventana de tiempo permitida."
    }
  ],
  "id": "CVE-2015-5352",
  "lastModified": "2026-06-17T00:28:59.547",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2015-08-03T01:59:01.137",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://openwall.com/lists/oss-security/2015/07/01/10"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0741.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.openssh.com/txt/release-6.9"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/75525"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securitytracker.com/id/1032797"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.ubuntu.com/usn/USN-2710-1"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.ubuntu.com/usn/USN-2710-2"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://anongit.mindrot.org/openssh.git/commit/?h=V_6_9\u0026id=1bf477d3cdf1a864646d59820878783d42357a1d"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://security.gentoo.org/glsa/201512-04"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://security.netapp.com/advisory/ntap-20181023-0001/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://openwall.com/lists/oss-security/2015/07/01/10"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0741.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.openssh.com/txt/release-6.9"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/75525"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id/1032797"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.ubuntu.com/usn/USN-2710-1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.ubuntu.com/usn/USN-2710-2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://anongit.mindrot.org/openssh.git/commit/?h=V_6_9\u0026id=1bf477d3cdf1a864646d59820878783d42357a1d"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://security.gentoo.org/glsa/201512-04"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://security.netapp.com/advisory/ntap-20181023-0001/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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