CVE-2023-26053 Gradle usage of long IDs for PGP keys opens potential for collision attacks

2023-03-0203:11:31

CWE-829

GitHub_M

www.cve.org

gradle

pgp keys

collision attack

dependency verification

metadata

vulnerability

fix

6.6 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.5 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

62.0%

JSON

Gradle is a build tool with a focus on build automation and support for multi-language development. This is a collision attack on long IDs (64bits) for PGP keys. Users of dependency verification in Gradle are vulnerable if they use long IDs for PGP keys in a trusted-key or pgp element in their dependency verification metadata file. The fix is to fail dependency verification if anything but a fingerprint is used in a trust element in dependency verification metadata. The problem is fixed in Gradle 8.0 and above. The problem is also patched in Gradle 6.9.4 and 7.6.1. As a workaround, use only full fingerprint IDs for trusted-key or pgp element in the metadata is a protection against this issue.

CNA Affected

[
  {
    "vendor": "gradle",
    "product": "gradle",
    "versions": [
      {
        "version": ">= 6.2, < 6.9.4",
        "status": "affected"
      },
      {
        "version": ">= 7.0.0, < 7.6.1",
        "status": "affected"
      }
    ]
  }
]