GHSA-f8mr-jv2c-v8mg
Suggest an improvement- Source
- https://github.com/advisories/GHSA-f8mr-jv2c-v8mg
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/09/GHSA-f8mr-jv2c-v8mg/GHSA-f8mr-jv2c-v8mg.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-f8mr-jv2c-v8mg
- Aliases
- Related
- Published
- 2020-09-09T17:29:27Z
- Modified
- 2024-11-18T22:46:46.311949Z
- Severity
-
- 8.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
- 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N CVSS Calculator
- Summary
- Invalid root may become trusted root in The Update Framework (TUF)
- Details
-
Impact
The Python TUF reference implementation
tuf<0.12will incorrectly trust a previously downloaded root metadata file which failed verification at download time. This allows an attacker who is able to serve multiple new versions of root metadata (i.e. by a man-in-the-middle attack) culminating in a version which has not been correctly signed to control the trust chain for future updates.While investigating the reported vulnerability, we discovered that the detailed client workflow was not fully implemented. Specifically, for step 1.3 the newly downloaded root metadata was not being verified with a threshold of keys specified in the new root metadata file. This missing step of the client workflow has been implemented in PR #1101, which is included in v0.14.0 of tuf.
Patches
A fix, is available in version 0.12 and newer.
Workarounds
No workarounds are known for this issue.
References
- Database specific
{ "github_reviewed": true, "nvd_published_at": "2020-09-09T18:15:00Z", "github_reviewed_at": "2020-09-09T17:27:31Z", "severity": "MODERATE", "cwe_ids": [ "CWE-345", "CWE-863" ] }- References
-
- https://github.com/theupdateframework/tuf/security/advisories/GHSA-f8mr-jv2c-v8mg
- https://nvd.nist.gov/vuln/detail/CVE-2020-15163
- https://github.com/theupdateframework/tuf/pull/885
- https://github.com/theupdateframework/tuf/commit/3d342e648fbacdf43a13d7ba8886aaaf07334af7
- https://github.com/pypa/advisory-database/tree/main/vulns/tuf/PYSEC-2020-145.yaml
- https://github.com/theupdateframework/tuf
- https://github.com/theupdateframework/tuf/releases/tag/v0.12.0
- https://pypi.org/project/tuf
Affected packages
PyPI / tuf
Package
- Name
- tuf
- View open source insights on deps.dev
- Purl
- pkg:pypi/tuf