CVE-2022-31034: argoproj argo_cd Use of Insufficiently Random Values

Vulnerability summary

CVE-2022-31034 is a high (CVSS 8.3) Use of Insufficiently Random Values vulnerability in argoproj argo_cd. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.3% of scored vulnerabilities.

Timeline

1. 27-06-2022
   PublishedVulnerability first disclosed.
2. 23-04-2025
   Last modifiedVulnerability information updated.

Description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. All versions of Argo CD starting with v0.11.0 are vulnerable to a variety of attacks when an SSO login is initiated from the Argo CD CLI or UI. The vulnerabilities are due to the use of insufficiently random values in parameters in Oauth2/OIDC login flows. In each case, using a relatively-predictable (time-based) seed in a non-cryptographically-secure pseudo-random number generator made the parameter less random than required by the relevant spec or by general best practices. In some cases, using too short a value made the entropy even less sufficient. The attacks on login flows which are meant to be mitigated by these parameters are difficult to accomplish but can have a high impact potentially granting an attacker admin access to Argo CD. Patches for this vulnerability has been released in the following Argo CD versions: v2.4.1, v2.3.5, v2.2.10 and v2.1.16. There are no known workarounds for this vulnerability.

• CWE-330Use of Insufficiently Random ValuesThe product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.
• CWE-331Insufficient EntropyThe product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.
• CWE-335Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)The product uses a Pseudo-Random Number Generator (PRNG) but does not correctly manage seeds.