CVE-2020-6174 – tuf

Package

Manager: pip
Name: tuf
Vulnerable Version: >=0 <0.12.2

Severity

Level: Critical

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00195 pctl0.41728

Details

Incorrect threshold signature computation in TUF ### Impact Metadadata signature verification, as used in `tuf.client.updater`, counted each of multiple signatures with identical authorized keyids separately towards the threshold. Therefore, an attacker with access to a valid signing key could create multiple valid signatures in order to meet the minimum threshold of keys before the metadata was considered valid. The tuf maintainers would like to thank Erik MacLean of Analog Devices, Inc. for reporting this issue. ### Patches A [fix](https://github.com/theupdateframework/tuf/pull/974) is available in version [0.12.2](https://github.com/theupdateframework/tuf/releases/tag/v0.12.2) or newer. ### Workarounds No workarounds are known for this issue. ### References * [CVE-2020-6174](https://nvd.nist.gov/vuln/detail/CVE-2020-6174) * Pull request resolving the issue [PR 974](https://github.com/theupdateframework/tuf/pull/974)

Metadata

Created: 2020-08-21T16:25:26Z
Modified: 2024-11-18T22:40:36Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/08/GHSA-pwqf-9h7j-7mv8/GHSA-pwqf-9h7j-7mv8.json
CWE IDs: ["CWE-347"]
Alternative ID: GHSA-pwqf-9h7j-7mv8
Finding: F163
Auto approve: 1