CVE-2022-29527

Severity: high (CVSS 7.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-04-20 · updated 2026-06-17
Weakness: CWE-362

Description

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.

Affected products

AWS Amazon SSM Agent: before 3.1.1208.0 — fixed in 3.1.1208.0

How to fix

Upgrade to a fixed version: AWS Amazon SSM Agent 3.1.1208.0. Check the vendor advisory for mitigations.

References

https://bugzilla.suse.com/show_bug.cgi?id=1196556
https://github.com/aws/amazon-ssm-agent/commit/0fe8ae99b2ff25649c7b86d3bc05fc037400aca7
https://github.com/aws/amazon-ssm-agent/releases/tag/3.1.1208.0
https://bugzilla.suse.com/show_bug.cgi?id=1196556
https://github.com/aws/amazon-ssm-agent/commit/0fe8ae99b2ff25649c7b86d3bc05fc037400aca7
https://github.com/aws/amazon-ssm-agent/releases/tag/3.1.1208.0

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