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High · 8.7 CVE-2020-15163 EUVD-2020-0224GHSA-f8mr-jv2c-v8mgPYSEC-2020-145

Invalid root may become trusted root in The Update Framework (TUF)

Published Sep 9, 2020 · Updated Aug 4, 2024 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
theupdateframework tuf < 0.12 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI tuf < 0.12.0 0.12.0 GHSA-f8mr-jv2c-v8mg

References