Advisories

WeKnora before 0.8.2 SSRF Guard Bypass via NAT64 IPv6 Addresses

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Severity
medium
Date
Affecting
  • WeKnora >= 0.2.11, < 0.8.2

CWE
  • CWE-918 Server-Side Request Forgery (SSRF)
CVSS
6.0
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
George Chen
Description
WeKnora before 0.8.2 contains a server-side request forgery vulnerability in isRestrictedIP() that misclassifies NAT64-prefixed IPv6 addresses as public. Authenticated attackers can supply URLs resolving to NAT64 encodings of internal addresses via web_fetch or URL-based knowledge import to reach internal services or cloud metadata endpoints.

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