Vulnerability · Published Sep 9, 2020 · Assigned by GitHub_M
CVE-2020-15163Invalid root may become trusted root in The Update Framework (TUF)
High 8.7
In plain English
A high-severity incorrect authorization in tuf from theupdateframework. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | tuf | 0.12.0 | GHSA-f8mr-jv2c-v8mg |
| PyPI | tuf | 0.12.0 | PYSEC-2020-145 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| theupdateframework | tuf | < 0.12 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
References
- https://github.com/theupdateframework/tuf/security/advisories/GHSA-f8mr-jv2c-v8mg x_refsource_CONFIRM
- https://github.com/theupdateframework/tuf/pull/885 x_refsource_MISC
- https://github.com/theupdateframework/tuf/releases/tag/v0.12.0 x_refsource_MISC
- https://pypi.org/project/tuf x_refsource_MISC
- https://github.com/theupdateframework/tuf/commit/3d342e648fbacdf43a13d7ba8886aaaf07334af7 x_refsource_CONFIRM