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SigNoz 0.133.0 SSO OAuth State Manipulation Session Token Theft

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severity
high
date
Affecting

  • signoz <= 0.133.0

CWE
  • CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
  • CWE-345 Insufficient Verification of Data Authenticity
CVSS
7.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
George Chen
Description
SigNoz through 0.133.0 contains an open redirect vulnerability in the SSO authentication flow that allows unauthenticated attackers to steal session tokens from any user on instances configured with Google OAuth, SAML, or OIDC. Attackers can call the unauthenticated sessions context endpoint with a ref parameter pointing to an attacker-controlled host, deliver the resulting crafted login URL to a victim, and receive the victim's access and refresh tokens when they complete SSO authentication.

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