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Advisories

Hermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settings

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severity
critical
date
Affecting

  • Hermes WebUI < 0.51.358

CWE
  • CWE-306 Missing Authentication for Critical Function
CVSS
9.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Credit
Chia Min Jun Lennon
Description
Hermes WebUI before version 0.51.358 contains an improper access control vulnerability that allows unauthenticated remote attackers to hijack initial setup by submitting the _set_password parameter to the settings API endpoint without any network origin restriction. Attackers on any reachable network can send a POST request to the settings endpoint during the first-run setup window to persist an arbitrary password hash, obtain a valid session cookie, and lock out the legitimate operator from their own instance.

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