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Advisories

Safing Portmaster before 2.2.5 Unauthenticated Forced Downgrade via /api/v1/updates/from-url

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Severity
medium
Date
Affecting

  • portmaster >= 0, < 2.2.5

CWE
  • CWE-306 Missing Authentication for Critical Function
CVSS
4.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Credit
George Chen
Description
Safing Portmaster before 2.2.5 contains a missing authorization vulnerability that allows unprivileged local processes to force updates by calling the POST /api/v1/updates/from-url endpoint registered with api.PermitAnyone. Attackers can supply an attacker-controlled index URL that bypasses version checks and auto-apply settings, installing older Safing-signed releases carrying previously fixed vulnerabilities.

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