ArgoCD Vulnerable to Use of Risky or Missing Cryptographic Algorithms in Redis Cache

Summary

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. It has been discovered that an unprivileged pod in a different namespace on the same cluster could connect to the Redis server on port 6379. Despite having installed the latest version of the VPC CNI plugin on the EKS cluster, it requires manual enablement through configuration to enforce network policies. This raises concerns that many clients might unknowingly have open access to their Redis servers. This vulnerability could lead to Privilege Escalation to the level of cluster controller, or to information leakage, affecting anyone who does not have strict access controls on their Redis instance. This issue has been patched in version(s) 2.8.19, 2.9.15 and 2.10.10.

Timeline

1. May 21, 2024, 7:08 PM UTCCVE published
2. May 22, 2024, 2:51 PM UTCCISA SSVC assessment

   Exploitation: poc · Automatable: no · Technical impact: total

3. Aug 2, 2024, 1:59 AM UTCRecord last updated

Affected versions

• argoproj argo-cd

  fixed in 2.8.19; From 2.9.0-rc1 · fixed in 2.9.15; From 2.10.0-rc1 · fixed in 2.10.10; From 2.11.0-rc1 · fixed in 2.11.1; through 1.8.7

• github.com/argoproj/argo-cdGo

  All versions

• github.com/argoproj/argo-cd/v2Go

  fixed in 2.8.19; From 2.9.0-rc1 · fixed in 2.9.15; From 2.10.0-rc1 · fixed in 2.10.10; From 2.11.0-rc1 · fixed in 2.11.1

• github.com/argoproj/argo-cd/v2Go

  fixed in 2.8.19

• github.com/argoproj/argo-cd/v2Go

  From 2.9.0-rc1 · fixed in 2.9.15

• github.com/argoproj/argo-cd/v2Go

  From 2.10.0-rc1 · fixed in 2.10.10

• github.com/argoproj/argo-cd/v2Go

  From 2.11.0-rc1 · fixed in 2.11.1

• github.com/argoproj/argo-cdGo

  through 1.8.7

References 10