CVE-2020-15163
High
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.
SeverityHigh
CVSS8.7
Exploit probability—
ProductLinuxfoundation The Update Framework
PublishedSep 9, 2020
First seenSep 9, 2020
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- linuxfoundation the_update_framework0.12.0 or later
- tuf0.12.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linuxfoundation the_update_framework | v < 0.12.0 | 0.12.0 |
| tufPyPI | v < 0.12.0 | 0.12.0 |
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