Advisories

Cap-go - App Existence Oracle via Unauthenticated transfer_app RPC

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severity
medium
date
Affecting
  • capgo >= 0, < 12.128.2

CWE
  • CWE-203 Observable Discrepancy
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Judel777
Description
Cap-go before 12.128.2 contains an information disclosure vulnerability in the public.transfer_app RPC function that returns distinct error messages for existing versus non-existing app IDs. Unauthenticated attackers can enumerate valid app IDs by observing error message differences when calling transfer_app with only the publishable API key.

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