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Advisories

Netgate pfSense CE through 2.9.0 Command Injection via PPPoE Server Username

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Severity
high
Date
Affecting

  • pfSense CE <= 2.9.0

CWE
  • CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
CVSS
7.5
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Abraxas Labs
Description
Netgate pfSense CE through 2.9.0 contains a newline injection vulnerability in services_pppoe_edit.php that allows privileged users to inject mpd.secret entries via unvalidated username POST fields. Attackers with the PPPoE Server Edit privilege can add a line whose secret begins with '!', making mpd5 run commands as root when a PPPoE client authenticates.

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