Advisories

LangBot before 4.10.11 Authentication Bypass via Weak Recovery Key

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severity
critical
date
Affecting
  • LangBot >= 4.0.8.1, < 4.10.11

CWE
  • CWE-331 Insufficient Entropy
CVSS
9.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
George Chen
Description
LangBot before 4.10.11 generates password recovery keys with only 24 bits of entropy and applies no rate limiting to the unauthenticated reset-password endpoint. Remote attackers knowing the administrator email can exhaust the keyspace through concurrent requests to reset the admin password and gain account access.

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