gsd - gsd-2021-32638

GSD-2021-32638

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Github's CodeQL action is provided to run CodeQL-based code scanning on non-GitHub CI/CD systems and requires a GitHub access token to connect to a GitHub repository. The runner and its documentation previously suggested passing the GitHub token as a command-line parameter to the process instead of reading it from a file, standard input, or an environment variable. This approach made the token visible to other processes on the same machine, for example in the output of the `ps` command. If the CI system publicly exposes the output of `ps`, for example by logging the output, then the GitHub access token can be exposed beyond the scope intended. Users of the CodeQL runner on 3rd-party systems, who are passing a GitHub token via the `--github-auth` flag, are affected. This applies to both GitHub.com and GitHub Enterprise users. Users of the CodeQL Action on GitHub Actions are not affected. The `--github-auth` flag is now considered insecure and deprecated. The undocumented `--external-repository-token` flag has been removed. To securely provide a GitHub access token to the CodeQL runner, users should **do one of the following instead**: Use the `--github-auth-stdin` flag and pass the token on the command line via standard input OR set the `GITHUB_TOKEN` environment variable to contain the token, then call the command without passing in the token. The old flag remains present for backwards compatibility with existing workflows. If the user tries to specify an access token using the `--github-auth` flag, there is a deprecation warning printed to the terminal that directs the user to one of the above options. All CodeQL runner releases codeql-bundle-20210304 onwards contain the patches. We recommend updating to a recent version of the CodeQL runner, storing a token in your CI system's secret storage mechanism, and passing the token to the CodeQL runner using `--github-auth-stdin` or the `GITHUB_TOKEN` environment variable. If still using the old flag, ensure that process output, such as from `ps`, is not persisted in CI logs.

Aliases

CVE-2021-32638

Aliases

CVE-2021-32638

JSON

To clipboard

{
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    "description": "Github\u0027s CodeQL action is provided to run CodeQL-based code scanning on non-GitHub CI/CD systems and requires a GitHub access token to connect to a GitHub repository. The runner and its documentation previously suggested passing the GitHub token as a command-line parameter to the process instead of reading it from a file, standard input, or an environment variable. This approach made the token visible to other processes on the same machine, for example in the output of the `ps` command. If the CI system publicly exposes the output of `ps`, for example by logging the output, then the GitHub access token can be exposed beyond the scope intended. Users of the CodeQL runner on 3rd-party systems, who are passing a GitHub token via the `--github-auth` flag, are affected. This applies to both GitHub.com and GitHub Enterprise users. Users of the CodeQL Action on GitHub Actions are not affected. The `--github-auth` flag is now considered insecure and deprecated. The undocumented `--external-repository-token` flag has been removed. To securely provide a GitHub access token to the CodeQL runner, users should **do one of the following instead**: Use the `--github-auth-stdin` flag and pass the token on the command line via standard input OR set the `GITHUB_TOKEN` environment variable to contain the token, then call the command without passing in the token. The old flag remains present for backwards compatibility with existing workflows. If the user tries to specify an access token using the `--github-auth` flag, there is a deprecation warning printed to the terminal that directs the user to one of the above options. All CodeQL runner releases codeql-bundle-20210304 onwards contain the patches. We recommend updating to a recent version of the CodeQL runner, storing a token in your CI system\u0027s secret storage mechanism, and passing the token to the CodeQL runner using `--github-auth-stdin` or the `GITHUB_TOKEN` environment variable. If still using the old flag, ensure that process output, such as from `ps`, is not persisted in CI logs.",
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}

CVE-2021-32638 (GCVE-0-2021-32638)

Vulnerability from cvelistv5 – Published: 2021-05-25 17:10 – Updated: 2024-08-03 23:25

Summary

Severity ?

4.4 (Medium)


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

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-214 - Invocation of Process Using Visible Sensitive Information

Assigner

GitHub_M

References

URL

Tags

	https://github.com/github/codeql-action/security/…	x_refsource_CONFIRM
	https://github.com/github/codeql-action/commit/58…	x_refsource_MISC
	https://github.com/github/codeql-action/commit/88…	x_refsource_MISC
	https://github.com/github/codeql-action/releases/…	x_refsource_MISC
	https://www.netmeister.org/blog/passing-passwords.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	github	codeql-action	Affected: < codeql-bundle-20210304

Show details on NVD website

JSON

To clipboard

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            {
              "lang": "eng",
              "value": "Github\u0027s CodeQL action is provided to run CodeQL-based code scanning on non-GitHub CI/CD systems and requires a GitHub access token to connect to a GitHub repository. The runner and its documentation previously suggested passing the GitHub token as a command-line parameter to the process instead of reading it from a file, standard input, or an environment variable. This approach made the token visible to other processes on the same machine, for example in the output of the `ps` command. If the CI system publicly exposes the output of `ps`, for example by logging the output, then the GitHub access token can be exposed beyond the scope intended. Users of the CodeQL runner on 3rd-party systems, who are passing a GitHub token via the `--github-auth` flag, are affected. This applies to both GitHub.com and GitHub Enterprise users. Users of the CodeQL Action on GitHub Actions are not affected. The `--github-auth` flag is now considered insecure and deprecated. The undocumented `--external-repository-token` flag has been removed. To securely provide a GitHub access token to the CodeQL runner, users should **do one of the following instead**: Use the `--github-auth-stdin` flag and pass the token on the command line via standard input OR set the `GITHUB_TOKEN` environment variable to contain the token, then call the command without passing in the token. The old flag remains present for backwards compatibility with existing workflows. If the user tries to specify an access token using the `--github-auth` flag, there is a deprecation warning printed to the terminal that directs the user to one of the above options. All CodeQL runner releases codeql-bundle-20210304 onwards contain the patches. We recommend updating to a recent version of the CodeQL runner, storing a token in your CI system\u0027s secret storage mechanism, and passing the token to the CodeQL runner using `--github-auth-stdin` or the `GITHUB_TOKEN` environment variable. If still using the old flag, ensure that process output, such as from `ps`, is not persisted in CI logs."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-214: Invocation of Process Using Visible Sensitive Information"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/github/codeql-action/security/advisories/GHSA-g36v-2xff-pv5m",
              "refsource": "CONFIRM",
              "url": "https://github.com/github/codeql-action/security/advisories/GHSA-g36v-2xff-pv5m"
            },
            {
              "name": "https://github.com/github/codeql-action/commit/58defc0652e935f6f2ffc70a82828b98d75476fb",
              "refsource": "MISC",
              "url": "https://github.com/github/codeql-action/commit/58defc0652e935f6f2ffc70a82828b98d75476fb"
            },
            {
              "name": "https://github.com/github/codeql-action/commit/88714e3a60e72ec53caa0e6a203652ee1f3fb1db",
              "refsource": "MISC",
              "url": "https://github.com/github/codeql-action/commit/88714e3a60e72ec53caa0e6a203652ee1f3fb1db"
            },
            {
              "name": "https://github.com/github/codeql-action/releases/tag/codeql-bundle-20210304",
              "refsource": "MISC",
              "url": "https://github.com/github/codeql-action/releases/tag/codeql-bundle-20210304"
            },
            {
              "name": "https://www.netmeister.org/blog/passing-passwords.html",
              "refsource": "MISC",
              "url": "https://www.netmeister.org/blog/passing-passwords.html"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-g36v-2xff-pv5m",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-32638",
    "datePublished": "2021-05-25T17:10:11",
    "dateReserved": "2021-05-12T00:00:00",
    "dateUpdated": "2024-08-03T23:25:30.983Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

GSD-2021-32638

CVE-2021-32638 (GCVE-0-2021-32638)

Tags

Sightings

Nomenclature