|
PHP "sscanf()" Code Execution Safe Mode Bypass
|
|
Secunia Advisory:
|
SA21403
|
|
|
Release Date:
|
2006-08-08
|
|
Last Update:
|
2006-08-18
|
|
Popularity:
|
16,267 views
|
|
|
Critical:
|
Less critical
|
|
Impact:
|
Security Bypass
|
|
Where:
|
Local system
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | PHP 4.4.x
PHP 5.1.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:
Heintz has discovered a vulnerability in PHP, which potentially can be exploited by malicious, local users to bypass certain security restrictions.
The vulnerability is caused due to an array boundary error in the "sscanf()" PHP function in the processing of the "$1s" format specifier. This can be exploited to reference freed memory by passing an variable as argument which has been unset.
Successful exploitation may e.g. allow bypass of the safe mode protection by executing arbitrary code.
The vulnerability has been confirmed in versions 5.1.4 and 4.4.3. Prior versions may also be 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.
|
