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Advisories

C-Kermit 7.0.197 before 11.1.515 IKSD Authentication Bypass via Refused Certificate Login

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Severity
high
Date
Affecting

  • C-Kermit >= 7.0.197, < 11.1.515

CWE
  • CWE-287 Improper Authentication
CVSS
7.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
John Goerzen, John Goerzen
Description
C-Kermit from 7.0.197 before 11.1.515 contains an authentication bypass vulnerability in the IKSD SSL build that leaves Telnet authentication state at AUTH_VALID after a refused certificate login. Attackers holding a trusted certificate mapped to a refused account can log in as any other account with any password, gaining that account's shell access.

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