Usermin: Multiple vulnerabilities
Gentoo Linux Security Advisory
||GLSA 200406-15 / Usermin
||June 18, 2004
||May 22, 2006: 02
All supported architectures
Usermin contains two security vulnerabilities which could lead to a Denial
of Service attack and information disclosure.
Usermin is a web-based administration tool for Unix. It supports a wide
range of user applications including configuring mail forwarding,
setting up SSH or reading mail.
Usermin contains two security vulnerabilities. One fails to properly
sanitize email messages that contain malicious HTML or script code and
the other could allow an attacker to lock out a valid user by sending
an invalid username and password.
By sending a specially crafted e-mail, an attacker can execute
arbitrary scripts running in the context of the victim's browser. This
can be lead to cookie theft and potentially to compromise of user
accounts. Furthermore, an attacker could lock out legitimate users by
sending invalid login information.
There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version.
Usermin users should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge sync
# emerge -pv ">=app-admin/usermin-1.080"
# emerge ">=app-admin/usermin-1.080"