miniserv.pl in (1) Webmin before 1.070 and (2) Usermin before 1.000 does not properly handle metacharacters such as line feeds and carriage returns (CRLF) in Base-64 encoded strings during Basic authentication, which allows remote attackers to spoof a session ID and gain root privileges.
http://www.securitytracker.com/id?1006160
http://www.securityfocus.com/bid/6915
http://www.mandriva.com/security/advisories?name=MDKSA-2003:025
http://www.linuxsecurity.com/advisories/gentoo_advisory-2886.html
http://www.lac.co.jp/security/english/snsadv_e/62_e.html
http://www.iss.net/security_center/static/11390.php
http://www.debian.org/security/2003/dsa-319
http://www.ciac.org/ciac/bulletins/n-058.shtml
http://secunia.com/advisories/8163
http://secunia.com/advisories/8115
http://marc.info/?l=webmin-announce&m=104587858408101&w=2
http://marc.info/?l=bugtraq&m=104610336226274&w=2
http://marc.info/?l=bugtraq&m=104610300325629&w=2
http://marc.info/?l=bugtraq&m=104610245624895&w=2
http://archives.neohapsis.com/archives/linux/engarde/2003-q1/0008.html