Headline
GHSA-qpgx-64h2-gc3c: Insecure path traversal in Git Trigger Source can lead to arbitrary file read
Impact
A path traversal issue was found in the (g *GitArtifactReader).Read() API. Read() calls into (g *GitArtifactReader).readFromRepository() that opens and reads the file that contains the trigger resource definition:
func (g *GitArtifactReader) readFromRepository(r *git.Repository, dir string)
No checks are made on this file at read time, which could lead an attacker to read files anywhere on the system. This could be achieved by either using symbolic links, or putting ../ in the path.
Patches
A patch for this vulnerability has been released in the following Argo Events version:
v1.7.1
Credits
Disclosed by Ada Logics in a security audit sponsored by CNCF and facilitated by OSTIF.
For more information
Open an issue in the Argo Events issue tracker or discussions Join us on Slack in channel #argo-events
Impact
A path traversal issue was found in the (g *GitArtifactReader).Read() API. Read() calls into (g *GitArtifactReader).readFromRepository() that opens and reads the file that contains the trigger resource definition:
func (g *GitArtifactReader) readFromRepository(r *git.Repository, dir string)
No checks are made on this file at read time, which could lead an attacker to read files anywhere on the system. This could be achieved by either using symbolic links, or putting …/ in the path.
Patches
A patch for this vulnerability has been released in the following Argo Events version:
v1.7.1
Credits
Disclosed by Ada Logics in a security audit sponsored by CNCF and facilitated by OSTIF.
For more information
Open an issue in the Argo Events issue tracker or discussions
Join us on Slack in channel #argo-events
References
- GHSA-qpgx-64h2-gc3c
Related news
The package github.com/argoproj/argo-events/sensors/artifacts before 1.7.1 are vulnerable to Directory Traversal in the (g *GitArtifactReader).Read() API in git.go. This could allow arbitrary file reads if the GitArtifactReader is provided a pathname containing a symbolic link or an implicit directory name such as ...