CVE-2024-39897 (GCVE-0-2024-39897)
Vulnerability from cvelistv5
Published
2024-07-09 18:48
Modified
2024-08-02 04:33
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Summary
zot is an OCI image registry. Prior to 2.1.0, the cache driver `GetBlob()` allows read access to any blob without access control check. If a Zot `accessControl` policy allows users read access to some repositories but restricts read access to other repositories and `dedupe` is enabled (it is enabled by default), then an attacker who knows the name of an image and the digest of a blob (that they do not have read access to), they may maliciously read it via a second repository they do have read access to. This attack is possible because [`ImageStore.CheckBlob()` calls `checkCacheBlob()`](https://github.com/project-zot/zot/blob/v2.1.0-rc2/pkg/storage/imagestore/imagestore.go#L1158-L1159) to find the blob a global cache by searching for the digest. If it is found, it is copied to the user requested repository with `copyBlob()`. The attack may be mitigated by configuring "dedupe": false in the "storage" settings. The vulnerability is fixed in 2.1.0.
References
Impacted products
Vendor Product Version
project-zot zot Version: < 2.1.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-39897",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-10T20:35:45.771671Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-10T20:35:52.715Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T04:33:11.364Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r"
          },
          {
            "name": "https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "zot",
          "vendor": "project-zot",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.1.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "zot is an OCI image registry. Prior to 2.1.0, the cache driver `GetBlob()` allows read access to any blob without access control check. If a Zot `accessControl` policy allows users read access to some repositories but restricts read access to other repositories and `dedupe` is enabled (it is enabled by default), then an attacker who knows the name of an image and the digest of a blob (that they do not have read access to), they may maliciously read it via a second repository they do have read access to. \n This attack is possible because [`ImageStore.CheckBlob()` calls `checkCacheBlob()`](https://github.com/project-zot/zot/blob/v2.1.0-rc2/pkg/storage/imagestore/imagestore.go#L1158-L1159) to find the blob a global cache by searching for the digest. If it is found, it is copied to the user requested repository with `copyBlob()`. The attack may be mitigated by configuring \"dedupe\": false in the \"storage\" settings. The vulnerability is fixed in 2.1.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-07-09T18:48:24.335Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r"
        },
        {
          "name": "https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df"
        }
      ],
      "source": {
        "advisory": "GHSA-55r9-5mx9-qq7r",
        "discovery": "UNKNOWN"
      },
      "title": "Cache driver GetBlob() allows read access to any blob without access control check"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-39897",
    "datePublished": "2024-07-09T18:48:24.335Z",
    "dateReserved": "2024-07-02T19:37:18.599Z",
    "dateUpdated": "2024-08-02T04:33:11.364Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-39897\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2024-07-09T19:15:12.953\",\"lastModified\":\"2025-04-23T17:30:11.787\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"zot is an OCI image registry. Prior to 2.1.0, the cache driver `GetBlob()` allows read access to any blob without access control check. If a Zot `accessControl` policy allows users read access to some repositories but restricts read access to other repositories and `dedupe` is enabled (it is enabled by default), then an attacker who knows the name of an image and the digest of a blob (that they do not have read access to), they may maliciously read it via a second repository they do have read access to. \\n This attack is possible because [`ImageStore.CheckBlob()` calls `checkCacheBlob()`](https://github.com/project-zot/zot/blob/v2.1.0-rc2/pkg/storage/imagestore/imagestore.go#L1158-L1159) to find the blob a global cache by searching for the digest. If it is found, it is copied to the user requested repository with `copyBlob()`. The attack may be mitigated by configuring \\\"dedupe\\\": false in the \\\"storage\\\" settings. The vulnerability is fixed in 2.1.0.\"},{\"lang\":\"es\",\"value\":\"zot es un registro de im\u00e1genes OCI. Antes de 2.1.0, el controlador de cach\u00e9 `GetBlob()` permite acceso de lectura a cualquier blob sin verificaci\u00f3n de control de acceso. Si una pol\u00edtica `accessControl` de Zot permite a los usuarios acceso de lectura a algunos repositorios pero restringe el acceso de lectura a otros repositorios y `dedupe` est\u00e1 habilitado (est\u00e1 habilitado de forma predeterminada), entonces un atacante que conoce el nombre de una imagen y el resumen de una blob (al que no tienen acceso de lectura), pueden leerlo maliciosamente a trav\u00e9s de un segundo repositorio al que s\u00ed tienen acceso de lectura. Este ataque es posible porque [`ImageStore.CheckBlob()` llama a `checkCacheBlob()`](https://github.com/project-zot/zot/blob/v2.1.0-rc2/pkg/storage/imagestore/imagestore .go#L1158-L1159) para encontrar el blob como cach\u00e9 global buscando el resumen. Si se encuentra, se copia al repositorio solicitado por el usuario con `copyBlob()`. El ataque se puede mitigar configurando \\\"dedupe\\\": false en la configuraci\u00f3n de \\\"storage\\\". La vulnerabilidad se solucion\u00f3 en 2.1.0.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-639\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-639\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:zotregistry:zot:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.1.0\",\"matchCriteriaId\":\"474C11AA-39EF-4745-8980-60B31E5DE18C\"}]}]}],\"references\":[{\"url\":\"https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Mitigation\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mitigation\",\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r\", \"name\": \"https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df\", \"name\": \"https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T04:33:11.364Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-39897\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-07-10T20:35:45.771671Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-07-10T20:35:50.259Z\"}}], \"cna\": {\"title\": \"Cache driver GetBlob() allows read access to any blob without access control check\", \"source\": {\"advisory\": \"GHSA-55r9-5mx9-qq7r\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"project-zot\", \"product\": \"zot\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 2.1.0\"}]}], \"references\": [{\"url\": \"https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r\", \"name\": \"https://github.com/project-zot/zot/security/advisories/GHSA-55r9-5mx9-qq7r\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df\", \"name\": \"https://github.com/project-zot/zot/commit/aaee0220e46bdadd12115ac67c19f9d3153eb1df\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"zot is an OCI image registry. Prior to 2.1.0, the cache driver `GetBlob()` allows read access to any blob without access control check. If a Zot `accessControl` policy allows users read access to some repositories but restricts read access to other repositories and `dedupe` is enabled (it is enabled by default), then an attacker who knows the name of an image and the digest of a blob (that they do not have read access to), they may maliciously read it via a second repository they do have read access to. \\n This attack is possible because [`ImageStore.CheckBlob()` calls `checkCacheBlob()`](https://github.com/project-zot/zot/blob/v2.1.0-rc2/pkg/storage/imagestore/imagestore.go#L1158-L1159) to find the blob a global cache by searching for the digest. If it is found, it is copied to the user requested repository with `copyBlob()`. The attack may be mitigated by configuring \\\"dedupe\\\": false in the \\\"storage\\\" settings. The vulnerability is fixed in 2.1.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-639\", \"description\": \"CWE-639: Authorization Bypass Through User-Controlled Key\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2024-07-09T18:48:24.335Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-39897\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-02T04:33:11.364Z\", \"dateReserved\": \"2024-07-02T19:37:18.599Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2024-07-09T18:48:24.335Z\", \"assignerShortName\": \"GitHub_M\"}",
      "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 seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.