CVE-2023-23762 (GCVE-0-2023-23762)

Vulnerability from cvelistv5 – Published: 2023-04-07 18:41 – Updated: 2025-02-10 15:20
VLAI?
Title
Incorrect comparison vulnerability in GitHub Enterprise Server leading to commit smuggling
Summary
An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff. To do so, an attacker would need write access to the repository and be able to correctly guess the target branch before it’s created by the code maintainer. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
GitHub Enterprise Server Affected: 3.4.0 , ≤ 3.4.17 (semver)
Affected: 3.5.0 , ≤ 3.5.14 (semver)
Affected: 3.6.0 , ≤ 3.6.10 (semver)
Affected: 3.7.0 , ≤ 3.7.7 (semver)
Affected: 3.8.0 , < 3.8.1 (semver)
Unaffected: 3.9.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T10:42:25.884Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-23762",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-10T15:19:59.621391Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-10T15:20:05.018Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "Enterprise Server",
          "vendor": "GitHub",
          "versions": [
            {
              "changes": [
                {
                  "at": "3.4.18",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.4.17",
              "status": "affected",
              "version": "3.4.0",
              "versionType": "semver"
            },
            {
              "changes": [
                {
                  "at": "3.5.15",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.5.14",
              "status": "affected",
              "version": "3.5.0",
              "versionType": "semver"
            },
            {
              "changes": [
                {
                  "at": "3.6.11",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.6.10",
              "status": "affected",
              "version": "3.6.0",
              "versionType": "semver"
            },
            {
              "changes": [
                {
                  "at": "3.7.8",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.7.7",
              "status": "affected",
              "version": "3.7.0",
              "versionType": "semver"
            },
            {
              "changes": [
                {
                  "at": "3.8.1",
                  "status": "unaffected"
                }
              ],
              "lessThan": "3.8.1",
              "status": "affected",
              "version": "3.8.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "3.9.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff. To do so, an attacker would need write access to the repository and be able to correctly guess the target branch before it\u2019s created by the code maintainer. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program."
            }
          ],
          "value": "An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff. To do so, an attacker would need write access to the repository and be able to correctly guess the target branch before it\u2019s created by the code maintainer. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-148",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-148 Content Spoofing"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-697",
              "description": "CWE-697 Incorrect Comparison",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-04-07T18:41:52.689Z",
        "orgId": "82327ea3-741d-41e4-88f8-2cf9e791e760",
        "shortName": "GitHub_P"
      },
      "references": [
        {
          "url": "https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1"
        },
        {
          "url": "https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8"
        },
        {
          "url": "https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11"
        },
        {
          "url": "https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15"
        },
        {
          "url": "https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Incorrect comparison vulnerability in GitHub Enterprise Server leading to commit smuggling",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "82327ea3-741d-41e4-88f8-2cf9e791e760",
    "assignerShortName": "GitHub_P",
    "cveId": "CVE-2023-23762",
    "datePublished": "2023-04-07T18:41:52.689Z",
    "dateReserved": "2023-01-17T20:40:37.553Z",
    "dateUpdated": "2025-02-10T15:20:05.018Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-23762\",\"sourceIdentifier\":\"product-cna@github.com\",\"published\":\"2023-04-07T19:15:07.057\",\"lastModified\":\"2024-11-21T07:46:47.047\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff. To do so, an attacker would need write access to the repository and be able to correctly guess the target branch before it\u2019s created by the code maintainer. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"product-cna@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.3,\"impactScore\":4.7},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"product-cna@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-697\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-697\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"3.4.18\",\"matchCriteriaId\":\"D30FF55B-C5FA-431A-8E0C-7FCB872AD8DC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.5.0\",\"versionEndExcluding\":\"3.5.15\",\"matchCriteriaId\":\"A6A66A3A-E2CB-4B7B-BB28-FD81D8A81F9C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.6.0\",\"versionEndExcluding\":\"3.6.11\",\"matchCriteriaId\":\"A4C79CD6-3EA8-470D-8E35-EF53450F063B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.7.0\",\"versionEndExcluding\":\"3.7.8\",\"matchCriteriaId\":\"75E3B814-6517-4938-917D-7098FF49E301\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:github:enterprise_server:3.8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"952A51A6-A24C-4989-9941-FE62E21C505D\"}]}]}],\"references\":[{\"url\":\"https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18\",\"source\":\"product-cna@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15\",\"source\":\"product-cna@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11\",\"source\":\"product-cna@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8\",\"source\":\"product-cna@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1\",\"source\":\"product-cna@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T10:42:25.884Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-23762\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-10T15:19:59.621391Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-10T15:19:49.646Z\"}}], \"cna\": {\"title\": \"Incorrect comparison vulnerability in GitHub Enterprise Server leading to commit smuggling\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"impacts\": [{\"capecId\": \"CAPEC-148\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-148 Content Spoofing\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 6.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"GitHub\", \"product\": \"Enterprise Server\", \"versions\": [{\"status\": \"affected\", \"changes\": [{\"at\": \"3.4.18\", \"status\": \"unaffected\"}], \"version\": \"3.4.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"3.4.17\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"3.5.15\", \"status\": \"unaffected\"}], \"version\": \"3.5.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"3.5.14\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"3.6.11\", \"status\": \"unaffected\"}], \"version\": \"3.6.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"3.6.10\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"3.7.8\", \"status\": \"unaffected\"}], \"version\": \"3.7.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"3.7.7\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"3.8.1\", \"status\": \"unaffected\"}], \"version\": \"3.8.0\", \"lessThan\": \"3.8.1\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"3.9.0\"}], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1\"}, {\"url\": \"https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8\"}, {\"url\": \"https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11\"}, {\"url\": \"https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15\"}, {\"url\": \"https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff. To do so, an attacker would need write access to the repository and be able to correctly guess the target branch before it\\u2019s created by the code maintainer. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff. To do so, an attacker would need write access to the repository and be able to correctly guess the target branch before it\\u2019s created by the code maintainer. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-697\", \"description\": \"CWE-697 Incorrect Comparison\"}]}], \"providerMetadata\": {\"orgId\": \"82327ea3-741d-41e4-88f8-2cf9e791e760\", \"shortName\": \"GitHub_P\", \"dateUpdated\": \"2023-04-07T18:41:52.689Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-23762\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-10T15:20:05.018Z\", \"dateReserved\": \"2023-01-17T20:40:37.553Z\", \"assignerOrgId\": \"82327ea3-741d-41e4-88f8-2cf9e791e760\", \"datePublished\": \"2023-04-07T18:41:52.689Z\", \"assignerShortName\": \"GitHub_P\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.