CVE-2022-29527 — Amazon AWS amazon-ssm-agent before 3

Amazon AWS amazon-ssm-agent before 3.1.1208.0 creates a world-writable sudoers file, which allows local attackers to inject Sudo rules and escalate privileges to root. This occurs in certain situations involving a race condition.

01What is this vulnerability?

Amazon AWS amazon-ssm-agent before 3.1.1208.0 creates a world-writable sudoers file, which allows local attackers to inject Sudo rules and escalate privileges to root. This occurs in certain situations involving a race condition.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-04-20T09:09:07.000Z
• Last modified: 2024-08-03T06:26:05.924Z

09References

• github.com — https://github.com/aws/amazon-ssm-agent/releases/tag/3.1.1208.0
• github.com — https://github.com/aws/amazon-ssm-agent/commit/0fe8ae99b2ff25649c7b86d3bc05fc037…
• bugzilla.suse.com — https://bugzilla.suse.com/show_bug.cgi?id=1196556