GHSA-99cg-575x-774p

Source

https://github.com/advisories/GHSA-99cg-575x-774p

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-99cg-575x-774p/GHSA-99cg-575x-774p.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-99cg-575x-774p

Aliases

CVE-2022-0317
GO-2022-0294

Published

2022-02-01T00:43:17Z

Modified

2023-11-01T04:57:04.603218Z

Severity

4.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator

Summary

Go-Attestation Improper Input Validation with attacker-controlled TPM Quote

Details

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.

Database specific

{
    "nvd_published_at": "2022-02-04T23:15:00Z",
    "cwe_ids": [
        "CWE-20"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-31T22:15:30Z"
}

References

Affected packages

Go / github.com/google/go-attestation

Package

Name: github.com/google/go-attestation; View open source insights on deps.dev
Purl: pkg:golang/github.com/google/go-attestation

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.4.0