CVE Vulnerabilities

CVE-2020-15163

Insufficient Verification of Data Authenticity

Published: Sep 09, 2020 | Modified: Nov 18, 2021
CVSS 3.x
8.2
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS 2.x
4.9 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Affected Software

Name Vendor Start Version End Version
The_update_framework Linuxfoundation * *

References