Vulnerability Description
act is a project which allows for local running of github actions. The artifact server that stores artifacts from Github Action runs does not sanitize path inputs. This allows an attacker to download and overwrite arbitrary files on the host from a Github Action. This issue may lead to privilege escalation. The /upload endpoint is vulnerable to path traversal as filepath is user controlled, and ultimately flows into os.Mkdir and os.Open. The /artifact endpoint is vulnerable to path traversal as the path is variable is user controlled, and the specified file is ultimately returned by the server. This has been addressed in version 0.2.40. Users are advised to upgrade. Users unable to upgrade may, during implementation of Open and OpenAtEnd for FS, ensure to use ValidPath() to check against path traversal or clean the user-provided paths manually.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Act Project | Act | < 0.2.40 |
Related Weaknesses (CWE)
References
- https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65Third Party Advisory
- https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245Third Party Advisory
- https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103CThird Party Advisory
- https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10PatchThird Party Advisory
- https://github.com/nektos/act/issues/1553Issue TrackingThird Party Advisory
- https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcffExploitThird Party Advisory
- https://securitylab.github.com/advisories/GHSL-2023-004_act/ExploitThird Party Advisory
- https://github.com/nektos/act/blob/master/pkg/artifacts/server.go#L65Third Party Advisory
- https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245Third Party Advisory
- https://github.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103CThird Party Advisory
- https://github.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10PatchThird Party Advisory
- https://github.com/nektos/act/issues/1553Issue TrackingThird Party Advisory
- https://github.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcffExploitThird Party Advisory
- https://securitylab.github.com/advisories/GHSL-2023-004_act/ExploitThird Party Advisory
FAQ
What is CVE-2023-22726?
CVE-2023-22726 is a vulnerability with a CVSS score of 8.0 (HIGH). act is a project which allows for local running of github actions. The artifact server that stores artifacts from Github Action runs does not sanitize path inputs. This allows an attacker to download ...
How severe is CVE-2023-22726?
CVE-2023-22726 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-22726?
Check the references section above for vendor advisories and patch information. Affected products include: Act Project Act.