Description (CNA)
SiYuan versions before v3.8.1 contain a server-side request forgery vulnerability in the http_request and web_fetch agent tools that perform DNS resolution only at guard time without validating the connect-time resolution. Attackers can use DNS rebinding to answer the guard resolution with a public IP and the connect resolution with a private or metadata IP, bypassing the SSRF defense to access cloud instance metadata and internal services.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| siyuan-note / siyuan | affected 0 before 3.8.1; unaffected 3.8.1 |
CWE
CWE-918
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-x8gv-g2g3-65fj
- https://www.vulncheck.com/advisories/siyuan-before-3.8.1-ssrf-via-dns-rebinding-toctou
ADP enrichment
No English description supplied.
No references supplied.