Brute-force acceleration via failure-cache eviction
Published Mar 18, 2024 · Updated Aug 1, 2024
Rate-limit bypass in Argo CD before 2.8.13, 2.9.0 through 2.9.8, and 2.10.0 through 2.10.3 allows remote attackers to accelerate brute-force attempts. The session manager stores per-username failures in a 1,000-entry map and deletes a random entry when unique usernames fill the cache, resetting a targeted account's counter. No authentication or user interaction is required, but the attack needs more than 1,000 distinct usernames and yields faster password guessing rather than direct account access.
Summary
What happened
Rate-limit bypass in Argo CD before 2.8.13, 2.9.0 through 2.9.8, and 2.10.0 through 2.10.3 allows remote attackers to accelerate brute-force attempts. The session manager stores per-username failures in a 1,000-entry map and deletes a random entry when unique usernames fill the cache, resetting a targeted account's counter. No authentication or user interaction is required, but the attack needs more than 1,000 distinct usernames and yields faster password guessing rather than direct account access.
The record
- CVE
- CVE-2024-21662
- Published
- Mar 18, 2024
- Updated
- Aug 1, 2024
- Vendor
- Argo Project
- Product
- Argo CD
- Classifications
- CWE-307, T1110.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 18, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <2.8.13
- Affected versionversion=2.10.0
- Affected versionversion=>= 2.10.0, < 2.10.4
- Affected versionversion=< 2.8.13
- Affected versionversion=>= 2.9.0, < 2.9.9
- Affected versionversion=2.9.0 <2.9.9
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GHSA-2vgg-9h6w-m454 cache-overflow proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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