Vulnerability Details CVE-2020-15163
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 35.5%
CVSS Severity
CVSS v3 Score 8.7
CVSS v2 Score 4.9
References
- https://github.com/theupdateframework/tuf/commit/3d342e648fbacdf43a13d7ba8886aaaf07334af7
- https://github.com/theupdateframework/tuf/pull/885
- https://github.com/theupdateframework/tuf/releases/tag/v0.12.0
- https://github.com/theupdateframework/tuf/security/advisories/GHSA-f8mr-jv2c-v8mg
- https://pypi.org/project/tuf
- https://github.com/theupdateframework/tuf/commit/3d342e648fbacdf43a13d7ba8886aaaf07334af7
- https://github.com/theupdateframework/tuf/pull/885
- https://github.com/theupdateframework/tuf/releases/tag/v0.12.0
- https://github.com/theupdateframework/tuf/security/advisories/GHSA-f8mr-jv2c-v8mg
- https://pypi.org/project/tuf
Products affected by CVE-2020-15163
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cpe:2.3:a:linuxfoundation:the_update_framework:0.10.0
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cpe:2.3:a:linuxfoundation:the_update_framework:0.10.1
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cpe:2.3:a:linuxfoundation:the_update_framework:0.10.2
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cpe:2.3:a:linuxfoundation:the_update_framework:0.11.0
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cpe:2.3:a:linuxfoundation:the_update_framework:0.11.1
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cpe:2.3:a:linuxfoundation:the_update_framework:0.11.2
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cpe:2.3:a:linuxfoundation:the_update_framework:0.7.5
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cpe:2.3:a:linuxfoundation:the_update_framework:0.9.8
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cpe:2.3:a:linuxfoundation:the_update_framework:0.9.9