Account takeover via spoofable PIN rate limits
Published Oct 1, 2024 · Updated Oct 1, 2024
Authentication bypass in Kaiten 57.131.12 and earlier allows remote attackers to gain account access by brute-forcing emailed PINs. The PIN verification endpoint trusts the X-Forwarded-For header for rate limiting, so changing the header resets the remaining-attempt counter and prevents HTTP 429 responses. Knowledge of a valid username is sufficient to submit repeated PIN guesses, and a correct guess returns an authenticated session cookie.
Summary
What happened
Authentication bypass in Kaiten 57.131.12 and earlier allows remote attackers to gain account access by brute-forcing emailed PINs. The PIN verification endpoint trusts the X-Forwarded-For header for rate limiting, so changing the header resets the remaining-attempt counter and prevents HTTP 429 responses. Knowledge of a valid username is sufficient to submit repeated PIN guesses, and a correct guess returns an authenticated session cookie.
The record
- CVE
- CVE-2024-41276
- Published
- Oct 1, 2024
- Updated
- Oct 1, 2024
- Vendor
- Kaiten Software
- Product
- Kaiten
- Classifications
- CWE-307, T1110.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 1, 2024CVE publishedPublication date reported by the CVE source.
- Oct 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 <=57.131.12
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
- CVE-2024-41276.shfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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