Bug 103512 - CAN-2003-0690 kdm local root via PAM
CAN-2003-0690 kdm local root via PAM
Product: Red Hat Enterprise Linux 2.1
Classification: Red Hat
Component: kdebase (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Ngo Than
Ben Levenson
: Security
Depends On:
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Reported: 2003-09-01 11:20 EDT by Mark J. Cox (Product Security)
Modified: 2007-11-30 17:06 EST (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2003-09-16 16:54:10 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Mark J. Cox (Product Security) 2003-09-01 11:20:00 EDT
KDM does not check for successful completion of the pam_setcred()
call. In case of error conditions in the installed PAM modules, KDM
might grant local root access to any user with valid login 

It has been reported that a certain configuration of the MIT pam_krb5
module can result in a failing pam_setcred() call leaving the 
session alive and providing root access to a regular user.

This issue will be public on September 8th 2003
Comment 2 Mark J. Cox (Product Security) 2003-09-09 07:58:24 EDT
Erratum has been delayed until Sep15 due to additional issue being found,
CAN-2003-0692, weak session cookies used by kdm.

Erratum RHSA-2003:270 in progress.
Comment 3 Mark J. Cox (Product Security) 2003-09-16 16:18:52 EDT
Erratum was released on 16th September, now public.
Comment 4 Mark J. Cox (Product Security) 2003-09-16 16:54:11 EDT
An errata has been issued which should help the problem described in this bug report. 
This report is therefore being closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, please follow the link below. You may reopen 
this bug report if the solution does not work for you.


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