Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

huaweicloud/huaweicloud-sdk-java-obs
master @ 1e4e5b7
6
Fixes
0
CVEs
CRITICAL
Peak severity
50.0%
Coverage
Highlights
Auth Bypass: 3 prior fixes. Scrutinize any change in this area.
pom.xml: most-fixed (2 issues). Treat as high-risk during review.
4 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Remote Code Execution: The project depended on outdated logging libraries vulnerable to the Log4Shell remote code execution vector. Any downstream application using this SDK could have been compromised if malicious input triggered the logger.
Cryptography: Insufficient integrity checks on client-side encrypted objects allowed for potential ciphertext tampering. Implementing Encrypt-then-MAC (EtM) with HMAC-SHA256 was necessary to prevent active adversary manipulation.
Auth Bypass: Retrieving ECS security credentials via IMDSv1 was vulnerable to Server-Side Request Forgery (SSRF). Upgrading the utility to use session-token-based IMDSv2 is crucial for securing temporary instance credentials.