|
X.Org X11 User Privilege Checking Security Bypass
|
|
Secunia Advisory:
|
SA19307
|
|
|
Release Date:
|
2006-03-21
|
|
Last Update:
|
2006-08-17
|
|
Popularity:
|
11,765 views
|
|
|
Critical:
|
Less critical
|
|
Impact:
|
Security Bypass
|
|
Where:
|
Local system
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | X Window System 11 (X11) 6.x
X Window System 11 (X11) 7.x
|
|
|
Secunia CVSS-2 Score:
|
Available in Secunia business solutions 
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities
|
|
| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
|
Description:
A vulnerability has been reported in X11, which can be exploited by malicious, local users to bypass certain security restrictions.
Normally, a non-root user is not allowed to pass arguments to the "-logfile" and "-modulepath" command line options. However, an error exists when checking a user's privileges as the address of the "geteuid()" function is tested and not the result of the function. This can be exploited to pass arbitrary arguments to the "-logfile" and "-modulepath" options, which allows overwriting of arbitrary files or execution of arbitrary code with root privileges.
The vulnerability has been reported in X.Org server 1.0.0 (as shipped with X11R7.0) and later, X11R6.9.0 and X11R7.0 (including all release candidates). X11R6.8.2 and prior versions are reportedly not affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
