Pedro Lineu Orso chetcpasswd before 2.4 relies on the X-Forwarded-For HTTP header when verifying a client's status on an IP address ACL, which allows remote attackers to gain unauthorized access by spoofing this header.
https://exchange.xforce.ibmcloud.com/vulnerabilities/30451
http://marc.info/?l=bugtraq&m=116371297325564&w=2
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=394454
http://sourceforge.net/project/shownotes.php?group_id=68912&release_id=466649
Source: Mitre, NVD
Published: 2006-12-21
Updated: 2026-06-16
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.01242