Vulnerability in Amazon Ssm Agent
CVE-2022-29527
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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/aws/amazon-ssm-agent/releases/tag/3.1.1208.0 (Patch, Third Party Advisory, Release Notes)
- github.com/aws/amazon-ssm-agent/commit/0fe8ae99b2ff25649c7b86d3bc05fc037400aca7 (Patch, Third Party Advisory)
- bugzilla.suse.com/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2022-29527?
- CVE-2022-29527 is a high-severity vulnerability in Amazon Ssm Agent, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2022-04-20.
- How severe is CVE-2022-29527?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2022-29527 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.