CVE-2020-15163
Invalid root may become trusted root in The Update Framework (TUF)
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 9, 2020
- Updated
- Aug 4, 2024
- Reserved
- Jun 25, 2020
Description
Python TUF (The Update Framework) reference implementation before version 0.12 it will 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 person-in-the-middle attack) culminating in a version which has not been correctly signed to control the trust chain for future updates. This is fixed in version 0.12 and newer.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.7 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N | GitHub_M |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
tuftheupdateframework |
|
References
- https://github.com/theupdateframework/tuf/security/advisories/GHSA-f8mr-jv2c-v8mg
- https://github.com/theupdateframework/tuf/pull/885
- https://github.com/theupdateframework/tuf/releases/tag/v0.12.0
- https://pypi.org/project/tuf
- https://github.com/theupdateframework/tuf/commit/3d342e648fbacdf43a13d7ba8886aaaf07334af7
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