ghsa-q6r9-r9pw-4cf7
Vulnerability from github
Published
2025-03-28 14:48
Modified
2025-04-02 23:03
Severity ?
4.2 (Medium) - CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H
5.7 (Medium) - CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Summary
tough failure to detect delegated target rollback
Details

Summary

When updating the snapshot role, TUF clients should ensure that any previously encountered targets or delegated targets metadata files continue to be present in new snapshot metadata files. Likewise, the new targets and delegated targets metadata versions must be greater than or equal to the previously encountered versions. While tough will perform this check for targets metadata files, it did not perform this check for delegated targets files.

Impact

tough could fail to detect cases where delegated targets metadata was removed or rolled back to a previous version. As a result, tough could trust and download outdated targets that it should reject.

Impacted versions: < v0.20.0

Patches

A fix for this issue is available in tough version 0.20.0 and later. Customers are advised to upgrade to version 0.20.0 or later and ensure any forked or derivative code is patched to incorporate the new fixes.

Workarounds

There is no recommended work around. Customers are advised to upgrade to version 0.20.0 or the latest version.

References

If you have any questions or comments about this advisory we ask that you contact AWS/Amazon Security via our vulnerability reporting page [1] or directly via email to aws-security@amazon.com. Please do not create a public GitHub issue.

[1] Vulnerability reporting page: https://aws.amazon.com/security/vulnerability-reporting

Acknowledgement

These issues were identified by the TUF-Conformance project. We would like to thank Google for collaborating on this issue through the coordinated vulnerability disclosure process.

Show details on source website

To clipboard 

{
   affected: [
      {
         package: {
            ecosystem: "crates.io",
            name: "tough",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "0.20.0",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2025-2887",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-1025",
      ],
      github_reviewed: true,
      github_reviewed_at: "2025-03-28T14:48:54Z",
      nvd_published_at: "2025-03-27T23:15:35Z",
      severity: "MODERATE",
   },
   details: "## Summary\n\nWhen updating the snapshot role, TUF clients should ensure that any previously encountered targets or delegated targets metadata files continue to be present in new snapshot metadata files. Likewise, the new targets and delegated targets metadata versions must be greater than or equal to the previously encountered versions. While tough will perform this check for targets metadata files, it did not perform this check for delegated targets files.\n\n## Impact\n\ntough could fail to detect cases where delegated targets metadata was removed or rolled back to a previous version. As a result, tough could trust and download outdated targets that it should reject.\n\nImpacted versions: < v0.20.0\n\n## Patches\n\nA fix for this issue is available in tough version 0.20.0 and later. Customers are advised to upgrade to version 0.20.0 or later and ensure any forked or derivative code is patched to incorporate the new fixes.\n\n## Workarounds\n\nThere is no recommended work around. Customers are advised to upgrade to version 0.20.0 or the latest version.\n\n## References\n\nIf you have any questions or comments about this advisory we ask that you contact AWS/Amazon Security via our vulnerability reporting page [1] or directly via email to [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.\n\n\n[1] Vulnerability reporting page: [https://aws.amazon.com/security/vulnerability-reporting](https://aws.amazon.com/security/vulnerability-reporting%EF%BF%BC)\n\n## Acknowledgement\n\nThese issues were identified by the [TUF-Conformance project](https://github.com/theupdateframework/tuf-conformance). We would like to thank Google for collaborating on this issue through the coordinated vulnerability disclosure process.",
   id: "GHSA-q6r9-r9pw-4cf7",
   modified: "2025-04-02T23:03:19Z",
   published: "2025-03-28T14:48:54Z",
   references: [
      {
         type: "WEB",
         url: "https://github.com/awslabs/tough/security/advisories/GHSA-q6r9-r9pw-4cf7",
      },
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2025-2887",
      },
      {
         type: "WEB",
         url: "https://github.com/awslabs/tough/commit/3345151a87c358d1ce43aeb7e8b3ebea5ebdbab4",
      },
      {
         type: "WEB",
         url: "https://aws.amazon.com/security/security-bulletins/AWS-2025-007",
      },
      {
         type: "PACKAGE",
         url: "https://github.com/awslabs/tough",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
      {
         score: "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
         type: "CVSS_V4",
      },
   ],
   summary: "tough failure to detect delegated target rollback",
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



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.