Invalid root may become trusted root in The Update Framework (TUF)
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.7%
exploitation probability
0.7%top 52% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Affected products
theupdateframework · tufReferences
https://github.com/theupdateframework/tuf/commit/3d342e648fbacdf43a13d7ba8886aaaf07334af7https://github.com/theupdateframework/tuf/pull/885https://github.com/theupdateframework/tuf/releases/tag/v0.12.0https://github.com/theupdateframework/tuf/security/advisories/GHSA-f8mr-jv2c-v8mghttps://pypi.org/project/tuf