FKIE_CVE-2023-38408

Vulnerability from fkie_nvd - Published: 2023-07-20 03:15 - Updated: 2026-06-17 06:10
Summary
The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an incomplete fix for CVE-2016-10009.
References
cve@mitre.orghttp://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/07/20/1Exploit, Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/07/20/2Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/09/22/11
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/09/22/9
cve@mitre.orghttps://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agentThird Party Advisory
cve@mitre.orghttps://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8Patch
cve@mitre.orghttps://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351dPatch
cve@mitre.orghttps://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7caPatch
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2023/08/msg00021.html
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/
cve@mitre.orghttps://news.ycombinator.com/item?id=36790196Issue Tracking, Patch
cve@mitre.orghttps://security.gentoo.org/glsa/202307-01Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20230803-0010/
cve@mitre.orghttps://support.apple.com/kb/HT213940
cve@mitre.orghttps://www.openssh.com/security.htmlVendor Advisory
cve@mitre.orghttps://www.openssh.com/txt/release-9.3p2Release Notes
cve@mitre.orghttps://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txtExploit, Third Party Advisory
cve@mitre.orghttps://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/07/20/1Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/07/20/2Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/09/22/11
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/09/22/9
af854a3a-2127-422b-91ae-364da2661108https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agentThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351dPatch
af854a3a-2127-422b-91ae-364da2661108https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7caPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/
af854a3a-2127-422b-91ae-364da2661108https://news.ycombinator.com/item?id=36790196Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202307-01Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230803-0010/
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT213940
af854a3a-2127-422b-91ae-364da2661108https://www.openssh.com/security.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openssh.com/txt/release-9.3p2Release Notes
af854a3a-2127-422b-91ae-364da2661108https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txtExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408
Impacted products

{
  "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": "BF546253-FE80-4416-A138-D79D7288229F",
              "versionEndExcluding": "9.3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:9.3:-:*:*:*:*:*:*",
              "matchCriteriaId": "031E80CD-A7CF-447A-AEEF-EB97EB99A762",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openbsd:openssh:9.3:p1:*:*:*:*:*:*",
              "matchCriteriaId": "97FEC052-52ED-464F-AF19-3621775292D6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
              "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*",
              "matchCriteriaId": "CC559B26-5DFC-4B7A-A27C-B77DE755DFF9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an incomplete fix for CVE-2016-10009."
    },
    {
      "lang": "es",
      "value": "La caracter\u00edstica PKCS#11 en ssh-agent en OpenSSH anterior a 9.3p2 tiene una ruta de b\u00fasqueda insuficientemente confiable, lo que lleva a la ejecuci\u00f3n remota de c\u00f3digo si un agente se reenv\u00eda a un sistema controlado por un atacante. (El c\u00f3digo en /usr/lib no es necesariamente seguro para cargar en ssh-agent). NOTA: este problema existe debido a una soluci\u00f3n incompleta para CVE-2016-10009."
    }
  ],
  "id": "CVE-2023-38408",
  "lastModified": "2026-06-17T06:10:06.760",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-38408",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-15T17:36:21.400489Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-07-20T03:15:10.170",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2023/07/20/1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2023/07/20/2"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.openwall.com/lists/oss-security/2023/09/22/11"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.openwall.com/lists/oss-security/2023/09/22/9"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://blog.qualys.com/vulnerabilities-threat-research/2023/07/19/cve-2023-38408-remote-code-execution-in-opensshs-forwarded-ssh-agent"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/openbsd/src/commit/7bc29a9d5cd697290aa056e94ecee6253d3425f8"
    },
    {
      "source": "cve@mitre.org",
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      "url": "https://github.com/openbsd/src/commit/f03a4faa55c4ce0818324701dadbf91988d7351d"
    },
    {
      "source": "cve@mitre.org",
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      ],
      "url": "https://github.com/openbsd/src/commit/f8f5a6b003981bb824329dc987d101977beda7ca"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00021.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEBTJJINE2I3FHAUKKNQWMFGYMLSMWKQ/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/"
    },
    {
      "source": "cve@mitre.org",
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      ],
      "url": "https://news.ycombinator.com/item?id=36790196"
    },
    {
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      "tags": [
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      ],
      "url": "https://security.gentoo.org/glsa/202307-01"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://security.netapp.com/advisory/ntap-20230803-0010/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://support.apple.com/kb/HT213940"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.openssh.com/security.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ],
      "url": "https://www.openssh.com/txt/release-9.3p2"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txt"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.html"
    },
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RAXVQS6ZYTULFAK3TEJHRLKZALJS3AOU/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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        "Patch"
      ],
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    },
    {
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    },
    {
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    {
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    },
    {
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    },
    {
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      "tags": [
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      ],
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.vicarius.io/vsociety/posts/exploring-opensshs-agent-forwarding-rce-cve-2023-38408"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-428"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-428"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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