Vulnerability Description
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 exploit a critical flaw in the application to initiate a Denial of Service (DoS) attack, rendering the application inoperable and affecting all users. The issue arises from unsafe manipulation of an array in a multi-threaded environment. The vulnerability is rooted in the application's code, where an array is being modified while it is being iterated over. This is a classic programming error but becomes critically unsafe when executed in a multi-threaded environment. When two threads interact with the same array simultaneously, the application crashes. This is a Denial of Service (DoS) vulnerability. Any attacker can crash the application continuously, making it impossible for legitimate users to access the service. The issue is exacerbated because it does not require authentication, widening the pool of potential attackers. Versions 2.8.13, 2.9.9, and 2.10.4 contain a patch for this issue.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Argoproj | Argo Cd | < 2.8.13 |
Related Weaknesses (CWE)
References
- https://github.com/argoproj/argo-cd/blob/54601c8fd30b86a4c4b7eb449956264372c8bdeProduct
- https://github.com/argoproj/argo-cd/commit/2a22e19e06aaf6a1e734443043310a66c234ePatch
- https://github.com/argoproj/argo-cd/commit/5bbb51ab423f273dda74ab956469843d2db2ePatch
- https://github.com/argoproj/argo-cd/commit/ce04dc5c6f6e92033221ec6d96b74403b065cPatch
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-6v85-wr92-q4p7ExploitVendor Advisory
- https://github.com/argoproj/argo-cd/blob/54601c8fd30b86a4c4b7eb449956264372c8bdeProduct
- https://github.com/argoproj/argo-cd/commit/2a22e19e06aaf6a1e734443043310a66c234ePatch
- https://github.com/argoproj/argo-cd/commit/5bbb51ab423f273dda74ab956469843d2db2ePatch
- https://github.com/argoproj/argo-cd/commit/ce04dc5c6f6e92033221ec6d96b74403b065cPatch
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-6v85-wr92-q4p7ExploitVendor Advisory
FAQ
What is CVE-2024-21661?
CVE-2024-21661 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 exploit a critical flaw in the application to initiate a Denial o...
How severe is CVE-2024-21661?
CVE-2024-21661 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-21661?
Check the references section above for vendor advisories and patch information. Affected products include: Argoproj Argo Cd.