Path traversal in Argo CD

1) Path traversal

EUVDB-ID: #VU60321

Risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2022-24348

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in  helmTemplate in repository.go. A remote user can send a specially crafted HTTP request and discover credentials stored in a YAML file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Argo CD: 1.0.0 - 2.2.3

CPE2.3

• cpe:2.3:a:argo:argo-cd:1.0.2:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:1.1.2:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:1.2.5:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:1.3.6:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:1.4.3:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:1.5.8:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:1.6.2:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:1.7.14:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:1.8.7:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:2.0.5:*:*:*:*:kubernetes:*:*

External links

https://apiiro.com/blog/malicious-kubernetes-helm-charts-can-be-used-to-steal-sensitive-information-from-argo-cd-deployments/
https://github.com/argoproj/argo-cd/security/advisories/GHSA-63qx-x74g-jcr7

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.