GSD-2022-35930

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to "custom"). An example image that can be used to test this is `ghcr.io/distroless/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2`. Users should upgrade to version 0.2.1 to resolve this issue. There are no workarounds for users unable to upgrade.
Aliases
Aliases
CVE-2022-35930
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{
  "GSD": {
    "alias": "CVE-2022-35930",
    "description": "PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to \"custom\"). An example image that can be used to test this is `ghcr.io/distroless/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2`. Users should upgrade to version 0.2.1 to resolve this issue. There are no workarounds for users unable to upgrade.",
    "id": "GSD-2022-35930"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-35930"
      ],
      "details": "PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to \"custom\"). An example image that can be used to test this is `ghcr.io/distroless/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2`. Users should upgrade to version 0.2.1 to resolve this issue. There are no workarounds for users unable to upgrade.",
      "id": "GSD-2022-35930",
      "modified": "2023-12-13T01:19:33.353922Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-35930",
        "STATE": "PUBLIC",
        "TITLE": "Ability to bypass attestation verification in sigstore PolicyController"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "policy-controller",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 0.2.1"
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              "vendor_name": "sigstore"
            }
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      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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          {
            "lang": "eng",
            "value": "PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to \"custom\"). An example image that can be used to test this is `ghcr.io/distroless/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2`. Users should upgrade to version 0.2.1 to resolve this issue. There are no workarounds for users unable to upgrade."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-347: Improper Verification of Cryptographic Signature"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8",
            "refsource": "CONFIRM",
            "url": "https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8"
          },
          {
            "name": "https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8",
            "refsource": "MISC",
            "url": "https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8"
          },
          {
            "name": "https://github.com/sigstore/policy-controller/releases/tag/v0.2.1",
            "refsource": "MISC",
            "url": "https://github.com/sigstore/policy-controller/releases/tag/v0.2.1"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-739f-hw6h-7wq8",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003cv0.2.1",
          "affected_versions": "All versions before 0.2.1",
          "cwe_ids": [
            "CWE-1035",
            "CWE-347",
            "CWE-937"
          ],
          "date": "2022-08-10",
          "description": "PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to \"custom\"). An example image that can be used to test this is `ghcr.io/distroless/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2`. Users should upgrade to version 0.2.1 to resolve this issue. There are no workarounds for users unable to upgrade.",
          "fixed_versions": [
            "v0.2.1"
          ],
          "identifier": "CVE-2022-35930",
          "identifiers": [
            "GHSA-739f-hw6h-7wq8",
            "CVE-2022-35930"
          ],
          "not_impacted": "All versions starting from 0.2.1",
          "package_slug": "go/github.com/sigstore/policy-controller",
          "pubdate": "2022-08-10",
          "solution": "Upgrade to version 0.2.1 or above.",
          "title": "Improper Verification of Cryptographic Signature",
          "urls": [
            "https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8",
            "https://nvd.nist.gov/vuln/detail/CVE-2022-35930",
            "https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8",
            "https://github.com/sigstore/policy-controller/releases/tag/v0.2.1",
            "https://github.com/advisories/GHSA-739f-hw6h-7wq8"
          ],
          "uuid": "eedc7a6f-bf4c-4826-90f5-256ba27e6a36",
          "versions": [
            {
              "commit": {
                "sha": "c85110421fc60f664636c64e58b84ab71d6fa94a",
                "tags": [
                  "v0.2.1"
                ],
                "timestamp": "20220804202333"
              },
              "number": "v0.2.1"
            }
          ]
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:sigstore:policy_controller:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.2.1",
                "vulnerable": true
              }
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            "operator": "OR"
          }
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      "cve": {
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          "ID": "CVE-2022-35930"
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        "description": {
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              "value": "PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to \"custom\"). An example image that can be used to test this is `ghcr.io/distroless/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2`. Users should upgrade to version 0.2.1 to resolve this issue. There are no workarounds for users unable to upgrade."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-347"
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        "references": {
          "reference_data": [
            {
              "name": "https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8",
              "refsource": "MISC",
              "tags": [
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              "name": "https://github.com/sigstore/policy-controller/releases/tag/v0.2.1",
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              "url": "https://github.com/sigstore/policy-controller/releases/tag/v0.2.1"
            }
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        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-08-11T18:14Z",
      "publishedDate": "2022-08-04T22:15Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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