Gitea's repository migration and pull mirror egress checks could be bypassed with a hostname that returns multiple DNS answers, because the address that was validated was not necessarily the address Git later connected to. A low-privileged user who can create migrations or mirrors could direct the server to internal services, reading from and writing to reachable internal Git or HTTP endpoints. Content from internal responses could additionally be disclosed through migration and mirror error messages.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Gitea Gitea
cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*
|
— |
28.0.0
|
References 5
https://github.com/go-gitea/gitea/security/advisories/GHSA-6g2h-xpg3-rm48
GitHub Security Advisory GHSA-6g2h-xpg3-rm48
https://github.com/go-gitea/gitea/pull/39010
Fix: go-gitea/gitea pull request #39010
https://github.com/go-gitea/gitea/pull/39426
Fix: go-gitea/gitea pull request #39426
https://blog.gitea.com/release-of-28.0.0/
Gitea 28.0.0 release announcement
https://github.com/go-gitea/gitea/releases/tag/v28.0.0
go-gitea/gitea v28.0.0 release