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Advisories

Zipline through 4.4.0 WebAuthn Authentication Bypass via Passkey Login

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Severity
critical
Date
Affecting

  • zipline <= 4.4.0

CWE
  • CWE-347 Improper Verification of Cryptographic Signature
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
nojomyth-dev
Description
Zipline through 4.4.0 contains an authentication bypass vulnerability in the WebAuthn login endpoint that creates sessions for a supplied registered credential ID without verifying the assertion. Attackers who obtain a target's passkey credential ID can impersonate that account without its authenticator, potentially gaining administrative control over SUPERADMIN accounts.

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