Description (CNA)
Cloudreve is a self-hosted file management and sharing system. Prior to 4.18.0, the ValidateExternalURL server-side request forgery guard in pkg/request/ssrf.go passes resolved addresses to checkIP without decoding NAT64, IPv4-compatible, and 6to4 IPv4-in-IPv6 transition forms. An authenticated user with remote-download access can provide SrcUri through RemoteDownloadTask.createDownloadTask so a wrapper embedding a loopback, private, link-local, or cloud metadata IPv4 address is classified as public and fetched, exposing internal service responses and cloud instance credentials. IPv4-mapped IPv6 addresses remain blocked because Go converts that form with net.IP.To4. This issue is fixed in version 4.18.0.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| cloudreve / cloudreve | affected < 4.18.0 |
CWE
CWE-918, CWE-697
References
- https://github.com/cloudreve/cloudreve/security/advisories/GHSA-jvh5-97xg-v99f
- https://github.com/cloudreve/cloudreve/commit/1c5cad6dec7ec3037c6479e3a26a3909995d16a2
- https://github.com/cloudreve/cloudreve/releases/tag/4.18.0
ADP enrichment
No English description supplied.
No references supplied.