CVE-2022-0317CWE-20

Improper Input Validation in AKPublic.Verify in go-attestation

Medium · published February 4, 2022

CVSS v3.1
4.0
EPSS
0%
Percentile
0.7
In the wild
Unconfirmed
What it is

An improper input validation vulnerability in go-attestation before 0.3.3 allows local users to provide a maliciously-formed Quote over no/some PCRs, causing AKPublic.Verify to succeed despite the inconsistency. Subsequent use of the same set of PCR values in Eventlog.Verify lacks the authentication performed by quote verification, meaning a local attacker could couple this vulnerability with a maliciously-crafted TCG log in Eventlog.Verify to spoof events in the TCG log, hence defeating remotely-attested measured-boot. We recommend upgrading to Version 0.4.0 or above.

The record
Technical detail
CVSS v3.1
4.0 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00096 · 0.7th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2022-02-04T22:33Z
EPSS history
Timeline
  • 04 FEB 22:33Z
    Improper Input Validation in AKPublic.Verify in go-attestation
    cvelistv5