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CVE-2024-21662— Argo CD vulnerable to Bypassing of Rate Limit and Brute Force Protection Using Cache Overflow

Quick assessment

Affected
argoproj argo-cd
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Argo CD是一个应用软件。用于Kubernetes的声明性GitOps连续交付工具。它持续监控正在运行的应用程序并将当前的实时状态与所需的目标状态（例如 Git 仓库中的配置）进行比较，在 Git 仓库更改时自动同步和部署应用程序。 Argo CD 2.8.13、2.9.9、2.10.4 之前版本存在安全漏洞，该漏洞源于允许攻击者利用程序薄弱的缓存机制，绕过速率限制和保护。

CVSS 7.5 · High EPSS 0.84% · P57

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force
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I. Basic Information for CVE-2024-21662

Vulnerability Information
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Vulnerability Title
Argo CD vulnerable to Bypassing of Rate Limit and Brute Force Protection Using Cache Overflow
Source: CVE Program / CVE List V5
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 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Argo CD 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Argo CD是一个应用软件。用于Kubernetes的声明性GitOps连续交付工具。它持续监控正在运行的应用程序并将当前的实时状态与所需的目标状态（例如 Git 仓库中的配置）进行比较，在 Git 仓库更改时自动同步和部署应用程序。 Argo CD 2.8.13、2.9.9、2.10.4 之前版本存在安全漏洞，该漏洞源于允许攻击者利用程序薄弱的缓存机制，绕过速率限制和保护。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
argoproj argo-cd < 2.8.13 -

II. Public POCs for CVE-2024-21662

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III. Intelligence Information for CVE-2024-21662

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Patches & Fixes for CVE-2024-21662 (3)

Vendor Advisories for CVE-2024-21662 (1)

Other References for CVE-2024-21662 (1)

Same Patch Batch · argoproj · 2024-03-18 · 3 CVEs total

CVE-2024-21652 9.8 CRITICAL Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Mem
CVE-2024-21661 7.5 HIGH Argo CD Denial of Service (DoS) Vulnerability Due to Unsafe Array Modification in Multi-th

IV. Related Vulnerabilities

Same product: argo-cd
Same vendor: argoproj
Same weakness: CWE-307

V. Comments for CVE-2024-21662

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