#VU87525 Improper access control in Argo CD - CVE-2023-50726

Vulnerability identifier: #VU87525

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L/E:U/U:Green]

CVE-ID: CVE-2023-50726

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Argo CD
Web applications / Modules and components for CMS

Vendor: Argo

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper validation bug. A remote user with "create" but not "override" privileges can perform local sync.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Argo CD: v2.7.14, v2.8.7, v2.9.3, 0.4.0 alpha1, 0.11.0 rc1 - 0.12.0 rc6, 1.0.0 rc1 - 1.0.0 rc3, 1.1.0 rc1 - 1.1.0 rc8, 1.2.0 rc1 - 1.2.5, 1.3.0 rc1 - 1.3.6, 1.4.0 rc1 - 1.4.3, 1.5.0 rc1 - 1.5.8, 1.6.0 rc1 - 1.6.2, 1.7.0 rc1 - 1.7.14, 1.8.0 rc1 - 1.8.7, 2.0.0 rc1 - 2.0.5, 2.1.0 rc1 - 2.10.2, 2.2.0 rc1 - 2.2.16, 2.3.0 rc1 - 2.3.17, 2.4.0 rc1 - 2.4.28, 2.5.0 rc1 - 2.5.22, 2.6.0 rc1 - 2.6.15, 2.7.0 rc1 - 2.7.113, 2.8.0 rc1 - 2.8.11, 2.9.0 rc1 - 2.9.7

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External links
https://github.com/argoproj/argo-cd/security/advisories/GHSA-g623-jcgg-mhmm
https://github.com/argoproj/argo-cd/commit/3b8f673f06c2d228e01cbc830e5cb57cef008978
https://argo-cd.readthedocs.io/en/latest/operator-manual/rbac

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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.