#VU94676 Resource exhaustion in Argo CD - CVE-2024-40634

Vulnerability identifier: #VU94676

Vulnerability risk: Medium

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2024-40634

CWE-ID: CWE-400

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 perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within the /api/webhook endpoint. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

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 - 1.0.2, 1.1.0 rc1 - 1.1.2, 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 - 2.11.5, 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 - 2.8.20, 2.9.0 rc1 - 2.9.19

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External links
https://github.com/argoproj/argo-cd/security/advisories/GHSA-jmvp-698c-4x3w
https://github.com/argoproj/argo-cd/commit/46c0c0b64deaab1ece70cb701030b76668ad0cdc
https://github.com/argoproj/argo-cd/commit/540e3a57b90eb3655db54793332fac86bcc38b36
https://github.com/argoproj/argo-cd/commit/d881ee78949e23160a0b280bb159e4d3d625a4df

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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.