Description (CNA)
SiYuan before v3.7.4 improperly restricts excessive authentication attempts in the CheckAuth() middleware. The HTTP Basic Authentication branch, which guards nearly the entire /api/* surface, accepts the workspace access code (Conf.AccessAuthCode) as the Basic Auth password but never consults the CAPTCHA/lockout gate or increments the failure counter used by the cookie/session login path. This allows unauthenticated remote attackers to brute-force the admin access code with unlimited automated requests and obtain full RoleAdministrator access to the kernel. A secondary weakness exists because the access code is compared using a non-constant-time string comparison.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| siyuan-note / siyuan | affected 0 before 3.7.4; unaffected 3.7.4 |
CWE
CWE-307
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-w3xh-mmmh-r54v
- https://www.vulncheck.com/advisories/siyuan-before-authentication-bypass-via-http-basic-auth
ADP enrichment
No English description supplied.