WID-SEC-W-2024-1053

Vulnerability from csaf_certbund - Published: 2016-04-17 22:00 - Updated: 2024-05-07 22:00
Summary
OpenSSH: Schwachstelle ermöglicht Privilegieneskalation
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: OpenSSH ist eine Open Source Implementierung des Secure Shell Protokolls.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle in OpenSSH ausnutzen, um seine Privilegien zu erhöhen.
Betroffene Betriebssysteme: - Linux - UNIX
CVE-2015-8325

Es existiert eine Schwachstelle in OpenSSH, die zur Privilegienerweiterung ausgenutzt werden kann. Diese Schwachstelle beruht in der Funktion "do_setup_env" in [/session.c b/session.c]. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um seine Privilegien auf Root-Rechte zu erweitern. Voraussetzung für einen erfolgreichen Angriff ist, dass zum einen PAM Unterstützung aktiviert und so konfiguriert ist, dass Benutzer-spezifische Umgebungsvariablen gelesen werden und zum anderen in der sshd_config "UseLogin=yes" gesetzt ist.

Affected products
Product Identifier Version Remediation
Ubuntu Linux 15.10
Ubuntu / Linux
 cpe:/o:canonical:ubuntu_linux:15.10 15.1
Open Source OpenSSH <7.3
Open Source / OpenSSH
 <7.3
Ubuntu Linux 12.04 LTS
Ubuntu / Linux
 cpe:/o:canonical:ubuntu_linux:12.04:-:lts 12.04 LTS
EMC Avamar
EMC
 cpe:/a:emc:avamar:- —
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Ubuntu Linux 14.04 LTS
Ubuntu / Linux
 cpe:/o:canonical:ubuntu_linux:14.04:-:lts 14.04 LTS
Debian Linux Jessie (8.0)
Debian / Linux
 cpe:/o:debian:debian_linux:8.0 —
Dell NetWorker virtual
Dell / NetWorker
 cpe:/a:dell:networker:virtual virtual
Debian Linux Wheezy (7.0)
Debian / Linux
 cpe:/o:debian:debian_linux:7.0 —
Oracle Linux
Oracle
 cpe:/o:oracle:linux:- —
PaloAlto Networks PAN-OS
PaloAlto Networks
 cpe:/o:paloaltonetworks:pan-os:- —
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "OpenSSH ist eine Open Source Implementierung des Secure Shell Protokolls.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in OpenSSH ausnutzen, um seine Privilegien zu erh\u00f6hen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2024-1053 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2016/wid-sec-w-2024-1053.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-1053 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1053"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-3550-1 vom 2016-04-17",
        "url": "https://www.debian.org/security/2016/dsa-3550"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-2966-1 vom 2016-05-10",
        "url": "http://www.ubuntu.com/usn/usn-2966-1/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2016:1386-1 vom 2016-05-24",
        "url": "https://www.suse.com/support/update/announcement/2016/suse-su-20161386-1.html"
      },
      {
        "category": "external",
        "summary": "NetBSD 7.0.1 Release",
        "url": "http://www.netbsd.org/releases/formal-7/NetBSD-7.0.1.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2016:1528-1 vom 2016-06-16",
        "url": "https://www.suse.com/support/update/announcement/2016/suse-su-20161528-1.html"
      },
      {
        "category": "external",
        "summary": "OpenSSH 7.3 release notes vom 2016-08-01",
        "url": "http://www.openssh.com/txt/release-7.3"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2016:2388-1 vom 2016-09-27",
        "url": "https://www.suse.com/support/update/announcement/2016/suse-su-20162388-1.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2016:2555-1 vom 2016-10-25",
        "url": "https://www.suse.com/support/update/announcement/2016/suse-su-20162555-1.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2016:2588-1 vom 2016-11-03",
        "url": "https://rhn.redhat.com/errata/RHSA-2016-2588.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2016-2588 vom 2016-11-09",
        "url": "http://linux.oracle.com/errata/ELSA-2016-2588.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2017:0641-1 vom 2017-03-21",
        "url": "https://rhn.redhat.com/errata/RHSA-2017-0641.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2017-0641 vom 2017-03-28",
        "url": "http://linux.oracle.com/errata/ELSA-2017-0641.html"
      },
      {
        "category": "external",
        "summary": "Palo Alto Networks Security Advisory PAN-SA-2020-0005 vom 2020-05-13",
        "url": "https://security.paloaltonetworks.com/PAN-SA-2020-0005"
      },
      {
        "category": "external",
        "summary": "Dell Security Advisory DSA-2024-198 vom 2024-05-08",
        "url": "https://www.dell.com/support/kbdoc/000224827/dsa-2024-="
      }
    ],
    "source_lang": "en-US",
    "title": "OpenSSH: Schwachstelle erm\u00f6glicht Privilegieneskalation",
    "tracking": {
      "current_release_date": "2024-05-07T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T18:08:36.948+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2024-1053",
      "initial_release_date": "2016-04-17T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2016-04-17T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initial Release"
        },
        {
          "date": "2016-04-17T22:00:00.000+00:00",
          "number": "2",
          "summary": "Version nicht vorhanden"
        },
        {
          "date": "2016-05-09T22:00:00.000+00:00",
          "number": "3",
          "summary": "New remediations available"
        },
        {
          "date": "2016-05-09T22:00:00.000+00:00",
          "number": "4",
          "summary": "Version nicht vorhanden"
        },
        {
          "date": "2016-05-24T22:00:00.000+00:00",
          "number": "5",
          "summary": "New remediations available"
        },
        {
          "date": "2016-05-24T22:00:00.000+00:00",
          "number": "6",
          "summary": "Version nicht vorhanden"
        },
        {
          "date": "2016-05-30T22:00:00.000+00:00",
          "number": "7",
          "summary": "New remediations available"
        },
        {
          "date": "2016-05-30T22:00:00.000+00:00",
          "number": "8",
          "summary": "Version nicht vorhanden"
        },
        {
          "date": "2016-06-16T22:00:00.000+00:00",
          "number": "9",
          "summary": "New remediations available"
        },
        {
          "date": "2016-08-01T22:00:00.000+00:00",
          "number": "10",
          "summary": "New remediations available"
        },
        {
          "date": "2016-08-01T22:00:00.000+00:00",
          "number": "11",
          "summary": "Version nicht vorhanden"
        },
        {
          "date": "2016-09-27T22:00:00.000+00:00",
          "number": "12",
          "summary": "New remediations available"
        },
        {
          "date": "2016-10-25T22:00:00.000+00:00",
          "number": "13",
          "summary": "New remediations available"
        },
        {
          "date": "2016-11-03T23:00:00.000+00:00",
          "number": "14",
          "summary": "New remediations available"
        },
        {
          "date": "2016-11-03T23:00:00.000+00:00",
          "number": "15",
          "summary": "Version nicht vorhanden"
        },
        {
          "date": "2016-11-09T23:00:00.000+00:00",
          "number": "16",
          "summary": "New remediations available"
        },
        {
          "date": "2016-11-09T23:00:00.000+00:00",
          "number": "17",
          "summary": "Version nicht vorhanden"
        },
        {
          "date": "2017-03-20T23:00:00.000+00:00",
          "number": "18",
          "summary": "New remediations available"
        },
        {
          "date": "2017-03-27T22:00:00.000+00:00",
          "number": "19",
          "summary": "New remediations available"
        },
        {
          "date": "2020-05-13T22:00:00.000+00:00",
          "number": "20",
          "summary": "Neue Updates von Palo Alto Networks aufgenommen"
        },
        {
          "date": "2024-05-07T22:00:00.000+00:00",
          "number": "21",
          "summary": "Neue Updates von Dell aufgenommen"
        }
      ],
      "status": "final",
      "version": "21"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Debian Linux Wheezy (7.0)",
                "product": {
                  "name": "Debian Linux Wheezy (7.0)",
                  "product_id": "199881",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:debian:debian_linux:7.0"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Debian Linux Jessie (8.0)",
                "product": {
                  "name": "Debian Linux Jessie (8.0)",
                  "product_id": "310725",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:debian:debian_linux:8.0"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux"
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "virtual",
                "product": {
                  "name": "Dell NetWorker virtual",
                  "product_id": "T034583",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:dell:networker:virtual"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "NetWorker"
          }
        ],
        "category": "vendor",
        "name": "Dell"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "EMC Avamar",
            "product": {
              "name": "EMC Avamar",
              "product_id": "T014381",
              "product_identification_helper": {
                "cpe": "cpe:/a:emc:avamar:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "EMC"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c7.0.1",
                "product": {
                  "name": "NetBSD Foundation NetBSD OS \u003c7.0.1",
                  "product_id": "T007683"
                }
              }
            ],
            "category": "product_name",
            "name": "NetBSD OS"
          }
        ],
        "category": "vendor",
        "name": "NetBSD Foundation"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c7.3",
                "product": {
                  "name": "Open Source OpenSSH \u003c7.3",
                  "product_id": "8223"
                }
              }
            ],
            "category": "product_name",
            "name": "OpenSSH"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "PaloAlto Networks PAN-OS",
            "product": {
              "name": "PaloAlto Networks PAN-OS",
              "product_id": "T012790",
              "product_identification_helper": {
                "cpe": "cpe:/o:paloaltonetworks:pan-os:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "PaloAlto Networks"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "12.04 LTS",
                "product": {
                  "name": "Ubuntu Linux 12.04 LTS",
                  "product_id": "170497",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:12.04:-:lts"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "15.1",
                "product": {
                  "name": "Ubuntu Linux 15.10",
                  "product_id": "316506",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:15.10"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "14.04 LTS",
                "product": {
                  "name": "Ubuntu Linux 14.04 LTS",
                  "product_id": "T003005",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:canonical:ubuntu_linux:14.04:-:lts"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux"
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2015-8325",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in OpenSSH, die zur Privilegienerweiterung ausgenutzt werden kann. Diese Schwachstelle beruht in der Funktion \"do_setup_env\" in [/session.c b/session.c]. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um seine Privilegien auf Root-Rechte zu erweitern. Voraussetzung f\u00fcr einen erfolgreichen Angriff ist, dass zum einen PAM Unterst\u00fctzung aktiviert und so konfiguriert ist, dass Benutzer-spezifische Umgebungsvariablen gelesen werden und zum anderen in der sshd_config \"UseLogin=yes\" gesetzt ist."
        }
      ],
      "product_status": {
        "known_affected": [
          "316506",
          "8223",
          "170497",
          "T014381",
          "T002207",
          "67646",
          "T003005",
          "310725",
          "T034583",
          "199881",
          "T004914",
          "T012790"
        ]
      },
      "release_date": "2016-04-17T22:00:00.000+00:00",
      "title": "CVE-2015-8325"
    }
  ]
}



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Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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