Vulnerability-Lookup

GHSA-X6PH-R535-3VJW

Vulnerability from github – Published: 2025-07-18 20:03 – Updated: 2025-07-18 20:03

Summary

apko is vulnerable to attack through incorrect permissions in /etc/ld.so.cache and other files

Details

It was discovered that the ld.so.cache in images generated by apko had file system permissions mode 0666:

bash-5.3# find / -type f -perm -o+w
/etc/ld.so.cache

This issue was introduced in commit 04f37e2 ("generate /etc/ld.so.cache (#1629)")(v0.27.0).

Impact

This potentially allows a local unprivileged user to add additional additional directories including dynamic libraries to the dynamic loader path. A user could exploit this by placing a malicious library in a directory they control.

Patches

This issue was addressed in apko in aedb077 ("fix: /etc/ld.so.cache file permissions (#1758)") (v0.29.5).

Acknowledgements

Many thanks to Cody Harris from H2O.ai for reporting this issue.

Severity

7.0 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "chainguard.dev/apko"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.27.0"
            },
            {
              "fixed": "0.29.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-53945"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-276"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-07-18T20:03:25Z",
    "nvd_published_at": "2025-07-18T16:15:30Z",
    "severity": "HIGH"
  },
  "details": "It was discovered that the ld.so.cache in images generated by apko had file system permissions mode `0666`:\n```\nbash-5.3# find / -type f -perm -o+w\n/etc/ld.so.cache\n```\n\nThis issue was introduced in commit [04f37e2 (\"generate /etc/ld.so.cache (#1629)\")](https://github.com/chainguard-dev/apko/commit/04f37e2d50d5a502e155788561fb7d40de705bd9)([v0.27.0](https://github.com/chainguard-dev/apko/releases/tag/v0.27.0)).\n\n###  Impact\nThis potentially allows a local unprivileged user to add additional additional directories including dynamic libraries to the dynamic loader path. A user could exploit this by placing a malicious library in a directory they control.\n\n### Patches\nThis issue was addressed in apko in [aedb077 (\"fix: /etc/ld.so.cache file permissions (#1758)\")](https://github.com/chainguard-dev/apko/commit/aedb0772d6bf6e74d8f17690946dbc791d0f6af3) ([v0.29.5](https://github.com/chainguard-dev/apko/releases/tag/v0.29.5)).\n\n### Acknowledgements\n\nMany thanks to Cody Harris from [H2O.ai](http://h2o.ai/) for reporting this issue.",
  "id": "GHSA-x6ph-r535-3vjw",
  "modified": "2025-07-18T20:03:25Z",
  "published": "2025-07-18T20:03:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/chainguard-dev/apko/security/advisories/GHSA-x6ph-r535-3vjw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53945"
    },
    {
      "type": "WEB",
      "url": "https://github.com/chainguard-dev/apko/commit/04f37e2d50d5a502e155788561fb7d40de705bd9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/chainguard-dev/apko/commit/aedb0772d6bf6e74d8f17690946dbc791d0f6af3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/chainguard-dev/apko"
    },
    {
      "type": "WEB",
      "url": "https://github.com/chainguard-dev/apko/releases/tag/v0.29.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "apko is vulnerable to attack through incorrect permissions in /etc/ld.so.cache and other files"
}

CVE-2025-53945 (GCVE-0-2025-53945)

Vulnerability from cvelistv5 – Published: 2025-07-18 15:35 – Updated: 2025-07-22 15:03

Title

apko has incorrect permission (0666) in /etc/ld.so.cache and other files

Summary

apko allows users to build and publish OCI container images built from apk packages. Starting in version 0.27.0 and prior to version 0.29.5, critical files were inadvertently set to 0666, which could likely be abused for root escalation. Version 0.29.5 contains a fix for the issue.

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-07-22 15:03 UTC

CWE

CWE-276 - Incorrect Default Permissions

Assigner

GitHub_M mitre root Scorecard

References

5 references

URL	Tags
https://github.com/chainguard-dev/apko/security/a…	x_refsource_CONFIRM
https://github.com/chainguard-dev/apko/commit/04f…	x_refsource_MISC
https://github.com/chainguard-dev/apko/commit/aed…	x_refsource_MISC
https://github.com/chainguard-dev/apko/releases/t…	x_refsource_MISC
https://github.com/chainguard-dev/apko/releases/t…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
chainguard-dev	apko	Affected: >= 0.27.0, < 0.29.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-53945",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-22T15:03:34.863284Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-22T15:03:42.966Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "apko",
          "vendor": "chainguard-dev",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 0.27.0, \u003c 0.29.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "apko allows users to build and publish OCI container images built from apk packages. Starting in version 0.27.0 and prior to version 0.29.5, critical files were inadvertently set to 0666, which could likely be abused for root escalation. Version 0.29.5 contains a fix for the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-276",
              "description": "CWE-276: Incorrect Default Permissions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-18T15:35:17.325Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/chainguard-dev/apko/security/advisories/GHSA-x6ph-r535-3vjw",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/chainguard-dev/apko/security/advisories/GHSA-x6ph-r535-3vjw"
        },
        {
          "name": "https://github.com/chainguard-dev/apko/commit/04f37e2d50d5a502e155788561fb7d40de705bd9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/chainguard-dev/apko/commit/04f37e2d50d5a502e155788561fb7d40de705bd9"
        },
        {
          "name": "https://github.com/chainguard-dev/apko/commit/aedb0772d6bf6e74d8f17690946dbc791d0f6af3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/chainguard-dev/apko/commit/aedb0772d6bf6e74d8f17690946dbc791d0f6af3"
        },
        {
          "name": "https://github.com/chainguard-dev/apko/releases/tag/v0.27.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/chainguard-dev/apko/releases/tag/v0.27.0"
        },
        {
          "name": "https://github.com/chainguard-dev/apko/releases/tag/v0.29.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/chainguard-dev/apko/releases/tag/v0.29.5"
        }
      ],
      "source": {
        "advisory": "GHSA-x6ph-r535-3vjw",
        "discovery": "UNKNOWN"
      },
      "title": "apko has incorrect permission (0666) in /etc/ld.so.cache and other files"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-53945",
    "datePublished": "2025-07-18T15:35:17.325Z",
    "dateReserved": "2025-07-14T17:23:35.262Z",
    "dateUpdated": "2025-07-22T15:03:42.966Z",
    "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.

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted