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Advisories

Seahub through 14.0.10 Predictable Share Link Passwords via Batch Endpoint

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Severity
low
Date
Affecting

  • seahub <= 14.0.10

CWE
  • CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CVSS
2.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
George Chen
Description
Seahub through 14.0.10 contains a weak randomness vulnerability in MultiShareLinksBatch.post() that generates batch share link passwords using Python's non-cryptographic random.choices(). Authenticated users permitted to create share links can request many generated passwords via the multi-share-links batch endpoint, recover the Mersenne Twister state, and predict other users' share link passwords.

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