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Linux-PAM User Name Spoofing Vulnerability
Secunia Advisory: SA9057
Release Date: 2003-06-17
Popularity: 14,171 views

Critical:
Less critical
Impact: Privilege escalation
Where: Local system
Solution Status: Vendor Patch

OS:Astaro Security Linux 2.x
Astaro Security Linux 3.x
Cobalt Linux 6
Conectiva Linux 6.0
Conectiva Linux 7.0
Conectiva Linux 8
Conectiva Linux 9
Debian GNU/Linux 2.x
Debian GNU/Linux 3.0
EnGarde Secure Community 1.x
Gentoo Linux 1.x
Mandrake Linux 7.x
Mandrake Linux 8.x
Mandrake Linux 9.x
OpenLinux Server 3.x
OpenLinux Workstation 3.x
Red Hat Enterprise Linux AS 2.1
Red Hat Enterprise Linux ES 2.1
Red Hat Enterprise Linux WS 2.1
Red Hat Linux 6.2
Red Hat Linux 7.0
Red Hat Linux 7.1
Red Hat Linux 7.2
Red Hat Linux 7.3
Red Hat Linux 8.0
Red Hat Linux 9
Red Hat Linux Advanced Server 2.1 for Itanium
Red Hat Linux Advanced Workstation 2.1 for Itanium
Slackware Linux 8.x
Slackware Linux 9.0
Sun Linux 5.x
SuSE Linux 7.x
SuSE Linux 8.x
SuSE Linux Connectivity Server
SuSE Linux Database Server
SuSE Linux Enterprise Server 7
SuSE Linux Enterprise Server 8
SuSE Linux Firewall on CD/Admin host
SuSE Linux Office Server
Trustix Linux 1.0
Trustix Linux 1.1
Trustix Linux 1.2
Trustix Linux 1.5

Software:Linux-PAM 0.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
A vulnerability has been identified in Linux-PAM, which allows malicious, local users to escalate their privileges.

The problem exists if PAM has been configured with "pam_wheel" to allow trusted users to become root without supplying the root password. Furthermore, the "trust" option has to be enabled and the "use_uid" option disabled.

Creating a "link" to the "tty" of a wheel user and starting "bash" so that it reads this "tty" allows malicious users to bypass the verification and escalate their privileges.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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