Description (CNA)
rsync 3.1.0 before 3.5.0 contains an access control bypass vulnerability that allows remote attackers to circumvent hosts deny rules by inducing DNS resolution failures during hostname-based access control evaluation. When a DNS lookup for a hostname-based deny rule fails, the daemon skips the rule rather than defaulting to a deny decision, enabling attackers who can trigger DNS failures to bypass module-level IP access controls and gain unauthorized access to restricted module file trees.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| RsyncProject / rsync | affected 3.1.0 through 3.4.4; unaffected 3.5.0 |
CWE
CWE-863, CWE-636
References
- https://github.com/RsyncProject/rsync/security/advisories/GHSA-6692-28cx-wpqq
- https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
- https://www.vulncheck.com/advisories/rsync-access-control-bypass-via-dns-resolution-failure
ADP enrichment
No English description supplied.
No references supplied.