Vulnerability-Lookup

GHSA-55V3-XH23-96GH

Vulnerability from github – Published: 2024-11-27 21:43 – Updated: 2024-12-12 19:17

Summary

`auth.TokenForHost` violates GitHub host security boundary when sourcing authentication token within a codespace

Details

Summary

A security vulnerability has been identified in go-gh that could leak authentication tokens intended for GitHub hosts to non-GitHub hosts when within a codespace.

Details

go-gh sources authentication tokens from different environment variables depending on the host involved:

GITHUB_TOKEN, GH_TOKEN for GitHub.com and ghe.com
GITHUB_ENTERPRISE_TOKEN, GH_ENTERPRISE_TOKEN for GitHub Enterprise Server

Prior to 2.11.1, auth.TokenForHost could source a token from the GITHUB_TOKEN environment variable for a host other than GitHub.com or ghe.com when within a codespace.

In 2.11.1, auth.TokenForHost will only source a token from the GITHUB_TOKEN environment variable for GitHub.com or ghe.com hosts.

Impact

Successful exploitation could send authentication token to an unintended host.

Remediation and mitigation

Upgrade go-gh to 2.11.1
Advise extension users to regenerate authentication tokens:
- Personal access tokens
- GitHub CLI OAuth app
Advise extension users to review their personal security log and any relevant audit logs for actions associated with their account or enterprise

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

Show details on source website

JSON

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.11.0"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/cli/go-gh/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.11.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 2.11.1"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/cli/go-gh"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-53859"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-27T21:43:03Z",
    "nvd_published_at": "2024-11-27T22:15:05Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nA security vulnerability has been identified in `go-gh` that could leak authentication tokens intended for GitHub hosts to non-GitHub hosts when within a codespace.\n\n### Details\n\n`go-gh` sources authentication tokens from different environment variables depending on the host involved:\n\n- `GITHUB_TOKEN`, `GH_TOKEN` for GitHub.com and ghe.com\n- `GITHUB_ENTERPRISE_TOKEN`, `GH_ENTERPRISE_TOKEN` for GitHub Enterprise Server\n\nPrior to `2.11.1`, `auth.TokenForHost` could source a token from the `GITHUB_TOKEN` environment variable for a host other than GitHub.com or ghe.com when [within a codespace](https://github.com/cli/go-gh/blob/71770357e0cb12867d3e3e288854c0aa09d440b7/pkg/auth/auth.go#L73-L77).\n\nIn `2.11.1`, `auth.TokenForHost` will only source a token from the `GITHUB_TOKEN` environment variable for GitHub.com or ghe.com hosts.\n\n### Impact\n\nSuccessful exploitation could send authentication token to an unintended host. \n\n### Remediation and mitigation\n\n1. Upgrade `go-gh` to `2.11.1`\n2. Advise extension users to regenerate authentication tokens:\n    - [Personal access tokens](https://docs.github.com/en/enterprise-cloud@latest/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens)\n    - [GitHub CLI OAuth app](https://docs.github.com/en/apps/using-github-apps/reviewing-and-revoking-authorization-of-github-apps#reviewing-your-authorized-github-apps)\n3. Advise extension users to review their personal [security log](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/reviewing-your-security-log) and any relevant [audit logs](https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/identifying-audit-log-events-performed-by-an-access-token) for actions associated with their account or enterprise\n",
  "id": "GHSA-55v3-xh23-96gh",
  "modified": "2024-12-12T19:17:34Z",
  "published": "2024-11-27T21:43:03Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cli/go-gh/security/advisories/GHSA-55v3-xh23-96gh"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53859"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/apps/using-github-apps/reviewing-and-revoking-authorization-of-github-apps#reviewing-your-authorized-github-apps"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/reviewing-your-security-log"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/identifying-audit-log-events-performed-by-an-access-token"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-cloud@latest/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cli/go-gh"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cli/go-gh/blob/71770357e0cb12867d3e3e288854c0aa09d440b7/pkg/auth/auth.go#L73-L77"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2024-3295"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "`auth.TokenForHost` violates GitHub host security boundary when sourcing authentication token within a codespace"
}

CVE-2024-53859 (GCVE-0-2024-53859)

Vulnerability from cvelistv5 – Published: 2024-11-27 21:25 – Updated: 2024-12-03 16:15

Title

go-gh `auth.TokenForHost` violates GitHub host security boundary within a codespace

Summary

go-gh is a Go module for interacting with the `gh` utility and the GitHub API from the command line. A security vulnerability has been identified in `go-gh` that could leak authentication tokens intended for GitHub hosts to non-GitHub hosts when within a codespace. `go-gh` sources authentication tokens from different environment variables depending on the host involved: 1. `GITHUB_TOKEN`, `GH_TOKEN` for GitHub.com and ghe.com and 2. `GITHUB_ENTERPRISE_TOKEN`, `GH_ENTERPRISE_TOKEN` for GitHub Enterprise Server. Prior to version `2.11.1`, `auth.TokenForHost` could source a token from the `GITHUB_TOKEN` environment variable for a host other than GitHub.com or ghe.com when within a codespace. In version `2.11.1`, `auth.TokenForHost` will only source a token from the `GITHUB_TOKEN` environment variable for GitHub.com or ghe.com hosts. Successful exploitation could send authentication token to an unintended host. This issue has been addressed in version 2.11.1 and all users are advised to upgrade. Users are also advised to regenerate authentication tokens and to review their personal security log and any relevant audit logs for actions associated with their account or enterprise.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-12-03 16:13 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M mitre root

References

6 references

URL	Tags
https://github.com/cli/go-gh/security/advisories/…	x_refsource_CONFIRM
https://docs.github.com/en/apps/using-github-apps…	x_refsource_MISC
https://docs.github.com/en/authentication/keeping…	x_refsource_MISC
https://docs.github.com/en/enterprise-cloud@lates…	x_refsource_MISC
https://docs.github.com/en/enterprise-cloud@lates…	x_refsource_MISC
https://github.com/cli/go-gh/blob/71770357e0cb128…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
cli	go-gh	Affected: < 2.11.1
github	go-gh	Affected: 0 , < 2.11.1 (custom) cpe:2.3:a:github:go-gh::::::::

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:github:go-gh:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "go-gh",
            "vendor": "github",
            "versions": [
              {
                "lessThan": "2.11.1",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-53859",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-12-03T16:13:23.904468Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-12-03T16:15:49.930Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "go-gh",
          "vendor": "cli",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.11.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "go-gh is a Go module for interacting with the `gh` utility and the GitHub API from the command line. A security vulnerability has been identified in `go-gh` that could leak authentication tokens intended for GitHub hosts to non-GitHub hosts when within a codespace. `go-gh` sources authentication tokens from different environment variables depending on the host involved: 1. `GITHUB_TOKEN`, `GH_TOKEN` for GitHub.com and ghe.com and 2. `GITHUB_ENTERPRISE_TOKEN`, `GH_ENTERPRISE_TOKEN` for GitHub Enterprise Server. Prior to version `2.11.1`, `auth.TokenForHost` could source a token from the `GITHUB_TOKEN` environment variable for a host other than GitHub.com or ghe.com when within a codespace. In version `2.11.1`, `auth.TokenForHost` will only source a token from the `GITHUB_TOKEN` environment variable for GitHub.com or ghe.com hosts. Successful exploitation could send authentication token to an unintended host. This issue has been addressed in version 2.11.1 and all users are advised to upgrade. Users are also advised to regenerate authentication tokens and to review their personal security log and any relevant audit logs for actions associated with their account or enterprise."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-27T21:25:12.391Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/cli/go-gh/security/advisories/GHSA-55v3-xh23-96gh",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/cli/go-gh/security/advisories/GHSA-55v3-xh23-96gh"
        },
        {
          "name": "https://docs.github.com/en/apps/using-github-apps/reviewing-and-revoking-authorization-of-github-apps#reviewing-your-authorized-github-apps",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.github.com/en/apps/using-github-apps/reviewing-and-revoking-authorization-of-github-apps#reviewing-your-authorized-github-apps"
        },
        {
          "name": "https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/reviewing-your-security-log",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/reviewing-your-security-log"
        },
        {
          "name": "https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/identifying-audit-log-events-performed-by-an-access-token",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/identifying-audit-log-events-performed-by-an-access-token"
        },
        {
          "name": "https://docs.github.com/en/enterprise-cloud@latest/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.github.com/en/enterprise-cloud@latest/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens"
        },
        {
          "name": "https://github.com/cli/go-gh/blob/71770357e0cb12867d3e3e288854c0aa09d440b7/pkg/auth/auth.go#L73-L77",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cli/go-gh/blob/71770357e0cb12867d3e3e288854c0aa09d440b7/pkg/auth/auth.go#L73-L77"
        }
      ],
      "source": {
        "advisory": "GHSA-55v3-xh23-96gh",
        "discovery": "UNKNOWN"
      },
      "title": "go-gh `auth.TokenForHost` violates GitHub host security boundary within a codespace"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-53859",
    "datePublished": "2024-11-27T21:25:12.391Z",
    "dateReserved": "2024-11-22T17:30:02.143Z",
    "dateUpdated": "2024-12-03T16:15:49.930Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.
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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

GHSA-55V3-XH23-96GH

Summary

Details

Impact

Remediation and mitigation

CVE-2024-53859 (GCVE-0-2024-53859)

Tags

Sightings

Nomenclature

Related by attack behaviour