Description (CNA)
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.4.0 until 3.8.0, the multipart processor in internal/bodyprocessors/multipart.go treats io.ErrUnexpectedEOF as nonfatal without setting MULTIPART_STRICT_ERROR. A remote attacker can submit a truncated multipart body that produces io.ErrUnexpectedEOF, causing parsing to stop without raising the strict-error signal used by the recommended defensive rule. Rules 200002 and 200003 do not fire, allowing multipart parser-disagreement payloads to reach a backend that interprets the truncated body differently. This issue is fixed in version 3.8.0.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| corazawaf / coraza | affected >= 3.4.0, < 3.8.0 |
CWE
CWE-693, CWE-755
References
- https://github.com/corazawaf/coraza/security/advisories/GHSA-r3rm-qphw-hh76
- https://github.com/corazawaf/coraza/commit/f94c81bec209f658120c418448d0590a549b71df
- https://github.com/corazawaf/coraza/releases/tag/v3.8.0
ADP enrichment
No English description supplied.
No references supplied.