CVE-2022-0317 – github.com/google/go-attestation

Package

Manager: go
Name: github.com/google/go-attestation
Vulnerable Version: >=0 <0.4.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00017 pctl0.02678

Details

Go-Attestation Improper Input Validation with attacker-controlled TPM Quote ### Impact An improper input validation vulnerability in go-attestation before 0.4.0 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. ### Patches This issue is resolved in version 0.4.0. If your usage of this library verifies PCRs using multiple quotes, make sure to use the new method `AKPublic.VerifyAll()` instead of `AKPublic.Verify`.

Metadata

Created: 2022-02-01T00:43:17Z
Modified: 2023-08-29T20:29:19Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-99cg-575x-774p/GHSA-99cg-575x-774p.json
CWE IDs: ["CWE-20"]
Alternative ID: GHSA-99cg-575x-774p
Finding: F184
Auto approve: 1