CVE-2024-21662
What it is
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Prior to versions 2.8.13, 2.9.9, and 2.10.4, an attacker can effectively bypass the rate limit and brute force protections by exploiting the application's weak cache-based mechanism. This loophole in security can be combined with other vulnerabilities to attack the default admin account. This flaw undermines a patch for CVE-2020-8827 intended to protect against brute-force attacks. The application's brute force protection relies on a cache mechanism that tracks login attempts for each user. This cache is limited to a `defaultMaxCacheSize` of 1000 entries. An attacker can overflow this cache by bombarding it with login attempts for different users, thereby pushing out the admin account's failed attempts and effectively resetting the rate limit for that account. This is a severe vulnerability that enables attackers to perform brute force attacks at an accelerated rate, especially targeting the default admin account. Users should upgrade to version 2.8.13, 2.9.9, or 2.10.4 to receive a patch.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data tampering.
- Exploit odds
- 0.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.8% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.8% · EPSS, next 30 days
- Weakness
- CWE-307
- Record status
- Analyzed
Affected
- Argoproj Argo Cd < 2.8.13
- Argoproj Argo Cd < 2.9.9
- Argoproj Argo Cd < 2.10.4
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-21662.md and follow it. Check whether this project is affected by CVE-2024-21662. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://argo-cd.readthedocs.io/en/stable/security_considerations/#cve-2020-8827-insufficient-anti-automationanti-brute-force
- https://github.com/argoproj/argo-cd/commit/17b0df1168a4c535f6f37e95f25ed7cd81e1fa4d
- https://github.com/argoproj/argo-cd/commit/6e181d72b31522f886a2afa029d5b26d7912ec7b
- https://github.com/argoproj/argo-cd/commit/cebb6538f7944c87ca2fecb5d17f8baacc431456
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-2vgg-9h6w-m454
- https://argo-cd.readthedocs.io/en/stable/security_considerations/#cve-2020-8827-insufficient-anti-automationanti-brute-force
- https://github.com/argoproj/argo-cd/commit/17b0df1168a4c535f6f37e95f25ed7cd81e1fa4d
- https://github.com/argoproj/argo-cd/commit/6e181d72b31522f886a2afa029d5b26d7912ec7b
- https://github.com/argoproj/argo-cd/commit/cebb6538f7944c87ca2fecb5d17f8baacc431456
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-2vgg-9h6w-m454
References
- https://argo-cd.readthedocs.io/en/stable/security_considerations/#cve-2020-8827-insufficient-anti-automationanti-brute-force
- https://github.com/argoproj/argo-cd/commit/17b0df1168a4c535f6f37e95f25ed7cd81e1fa4d
- https://github.com/argoproj/argo-cd/commit/6e181d72b31522f886a2afa029d5b26d7912ec7b
- https://github.com/argoproj/argo-cd/commit/cebb6538f7944c87ca2fecb5d17f8baacc431456
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-2vgg-9h6w-m454
- https://argo-cd.readthedocs.io/en/stable/security_considerations/#cve-2020-8827-insufficient-anti-automationanti-brute-force
- https://github.com/argoproj/argo-cd/commit/17b0df1168a4c535f6f37e95f25ed7cd81e1fa4d
- https://github.com/argoproj/argo-cd/commit/6e181d72b31522f886a2afa029d5b26d7912ec7b
- https://github.com/argoproj/argo-cd/commit/cebb6538f7944c87ca2fecb5d17f8baacc431456
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-2vgg-9h6w-m454