CVE-2024-21652CWE-307

Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss

Critical · published March 18, 2024

CVSS v3.1
9.8
EPSS
1%
Percentile
54.5
In the wild
Unconfirmed
What it is

🚨 A chain of vulnerabilities lurking in Argo CD can unleash chaos, allowing attackers to crash services and bypass brute force protections - talk about a double whammy! 🔥 Imagine a bouncer at a club who’s supposed to limit entry based on a guest list but gets distracted while someone sneaks in the back door — that’s what’s happening here. An attacker can overwhelm the system with login attempts while simultaneously crashing the party for everyone else! With this critical vulnerability, an attacker could not only crash the Argo CD service, locking users out, but also conduct unlimited login attempts, drastically increasing the likelihood of account compromises. This means they could waltz right in and take control of sensitive data — absolutely devastating!

Put simply

Imagine a bouncer at a club who’s supposed to limit entry based on a guest list but gets distracted while someone sneaks in the back door — that’s what’s happening here. An attacker can overwhelm the system with login attempts while simultaneously crashing the party for everyone else! This vulnerability involves a Denial of Service (DoS) flaw combined with an in-memory data storage weakness, allowing attackers to bypass the brute force login protection mechanisms in versions prior to 2.8.13, 2.9.9, and 2.10.4.

What to do

With this critical vulnerability, an attacker could not only crash the Argo CD service, locking users out, but also conduct unlimited login attempts, drastically increasing the likelihood of account compromises. This means they could waltz right in and take control of sensitive data — absolutely devastating! Update to Argo CD versions 2.8.13, 2.9.9, or 2.10.4 immediately to patch this vulnerability. Additionally, review your authentication processes and consider implementing rate limiting to bolster security. Don’t let this slip by! You've got this! With these updates and precautions, you'll keep your environment secure and your user accounts safe. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00751 · 54.5th percentile
Weakness
CWE-307 · Improper Restriction of Excessive Authentication Attempts
Published
2024-03-18T17:14Z
EPSS history
Timeline
  • 18 MAR 17:14Z
    Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss
    cvelistv5