Improper authorization in Argo CD

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU72475

Risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-23947

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to compromise the entire cluster.

The vulnerability exists due to missing authorization checks when updating passwords. A remote user with ability to update at least one cluster secret can update any cluster secret.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Argo CD: 2.3.0 - 2.6.1

CPE2.3

• cpe:2.3:a:argo:argo-cd:2.3.16:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:2.4.22:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:2.5.10:*:*:*:*:kubernetes:*:*
• cpe:2.3:a:argo:argo-cd:2.6.1:*:*:*:*:kubernetes:*:*

External links

https://github.com/argoproj/argo-cd/commit/fbb0b99b1ac3361b253052bd30259fa43a520945
https://github.com/argoproj/argo-cd/security/advisories/GHSA-3jfq-742w-xg8j

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.