Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. All versions of ArgoCD starting from v2.4 have a bug where the ArgoCD repo-server component is vulnerable to a Denial-of-Service attack vector. Specifically, it's possible to crash the repo server component through an out of memory error by pointing it to a malicious Helm registry. The loadRepoIndex() function in the ArgoCD's helm package, does not limit the size nor time while fetching the data. It fetches it and creates a byte slice from the retrieved data in one go. If the registry is implemented to push data continuously, the repo server will keep allocating memory until it runs out of it. A patch for this vulnerability has been released in v2.10.3, v2.9.8, and v2.8.12.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. All versions of ArgoCD starting
    from v2.4 have a bug where the ArgoCD repo-server component is vulnerable to a Denial-of-Service attack
    vector. Specifically, it's possible to crash the repo server component through an out of memory error by
    pointing it to a malicious Helm registry. The loadRepoIndex() function in the ArgoCD's helm package, does
    not limit the size nor time while fetching the data. It fetches it and creates a byte slice from the
    retrieved data in one go. If the registry is implemented to push data continuously, the repo server will
    keep allocating memory until it runs out of it. A patch for this vulnerability has been released in
    v2.10.3, v2.9.8, and v2.8.12. (CVE-2024-29893)

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1752 advisory.

    Errata Advisory for Red Hat OpenShift GitOps v1.12.1- Argo CD CLI and MicroShift GitOps.

    Security Fix(es):

    * argo-cd: Denial of Service Due to Unsafe Array Modification in Multi-threaded Environment     (CVE-2024-21661)

    * argo-cd: Users with `create` but not `override` privileges can perform local     sync (CVE-2023-50726)

    * argo-cd: Bypassing Brute Force Protection via Application Crash and In-Memory Data Loss (CVE-2024-21652)

    * argo-cd: uncontrolled resource consumption vulnerability (CVE-2024-29893)

    * argo-cd: Bypassing Rate Limit and Brute Force Protection Using Cache Overflow (CVE-2024-21662)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References     section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
416399	SCA: security update for github.com/argoproj/argo-cd/v2 (GHSA-jhwx-mhww-rgc3)	Tenable Cloud Security	SCA Checks	Local	medium
416399	SCA: security update for github.com/argoproj/argo-cd/v2 (GHSA-jhwx-mhww-rgc3)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
193172	RHEL 8 / 9 : GitOps 1.12.1- Argo CD CLI and MicroShift GitOps (RHSA-2024:1752)	Nessus	Red Hat Local Security Checks	Local	critical

Detections

Analytics

CVE-2024-29893

medium

Tenable Plugins

medium

medium

critical