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Advisories

OPNsense before 26.7.8 Wireless WPA Configuration Line Injection via Identity

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Severity
medium
Date
Affecting

  • core >= 0, < 26.7.8

CWE
  • CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
CVSS
6.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Abraxas Labs, Ad Schellevis
Description
OPNsense core before 26.7.8 contains a configuration line injection vulnerability that allows authenticated users with wireless-edit privilege to inject directives by embedding CR/LF characters in WPA fields. Attackers can place newlines in wpa.identity, wpa.passphrase, or RADIUS shared secrets to append arbitrary wpa_supplicant or hostapd directives loaded by root-run daemons.

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