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CVE-2018-20683

Status: ModifiedHigh (8.1)—

commands/rsync in Gitolite before 3.6.11, if .gitolite.rc enables rsync, mishandles the rsync command line, which allows attackers to have a "bad" impact by triggering use of an option other than -v, -n, -q, or -P.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Gitolite — Gitolite

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-20683",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-01-10T01:29:00.237",
  "references": [
    {
      "url": "https://bugs.debian.org/918849",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/sitaramc/gitolite/blob/master/CHANGELOG",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/sitaramc/gitolite/commit/5df2b817255ee919991da6c310239e08c8fcc1ae",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://groups.google.com/forum/#%21topic/gitolite-announce/6xbjjmpLePQ",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.debian.org/918849",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/sitaramc/gitolite/blob/master/CHANGELOG",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/sitaramc/gitolite/commit/5df2b817255ee919991da6c310239e08c8fcc1ae",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://groups.google.com/forum/#%21topic/gitolite-announce/6xbjjmpLePQ",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "commands/rsync in Gitolite before 3.6.11, if .gitolite.rc enables rsync, mishandles the rsync command line, which allows attackers to have a \"bad\" impact by triggering use of an option other than -v, -n, -q, or -P."
    },
    {
      "lang": "es",
      "value": "commands/rsync en Gitolite, en versiones anteriores a la 3.6.11, si .gitolite.rc habilita rsync, gestiona de manera incorrecta la línea de comandos de rsync, lo que permite que los atacantes provoquen un \"mal\" impacto desencadenando el uso de una opción diferente de -v, -n, -q o -P."
    }
  ],
  "lastModified": "2026-06-17T01:53:19.060",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gitolite:gitolite:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "28CA908F-A705-45C3-B4B8-A575E9265101",
              "versionEndExcluding": "3.6.11"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}