Account takeover via predictable password-reset keys
Published Oct 31, 2024 · Updated Oct 31, 2024
Weak password-reset cryptography in YesWiki before 4.4.5 allows remote attackers to reset any account password and take over the account. LostPasswordAction builds each recovery key with MD5 from account data, the request timestamp, only 10,001 random values, and a fixed FBcA salt. An attacker needs the target username and email address, then can request a reset, brute-force the random value against the recovery endpoint, and replace the account password.
Summary
What happened
Weak password-reset cryptography in YesWiki before 4.4.5 allows remote attackers to reset any account password and take over the account. LostPasswordAction builds each recovery key with MD5 from account data, the request timestamp, only 10,001 random values, and a fixed FBcA salt. An attacker needs the target username and email address, then can request a reset, brute-force the random value against the recovery endpoint, and replace the account password.
The record
- CVE
- CVE-2024-51478
- Published
- Oct 31, 2024
- Updated
- Oct 31, 2024
- Vendor
- YesWiki
- Product
- YesWiki
- Classifications
- CWE-327, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 31, 2024CVE publishedPublication date reported by the CVE source.
- Oct 31, 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 <4.4.5
- Affected versionversion=< 4.4.5
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
- YesWiki password-reset key brute-force proof of conceptproof of concept · 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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