Dognædis Ref.: DGS-SEC-7
CVE Ref: CVE-2011-4545
Release Date: 2011/11/22
Discover Credits: CodeV - Code Analyzer
Bulletin Author(s): RGouveia
Type: Header Injection
Level: Low (Low/High/Critical)
CVSS: 4 (AV:N/AC:H/Au:N/C:P/I:P/A:N)
Vulnerable Application: Prestashop (ver. 220.127.116.11)
PrestaShop is an e-commerce solution which is free for the basic kernel and open source. It supports payment gateways such as Google checkout, Paypal or payments pro via APIs.
The referred vulnerability could be exploited through a Header Split Injection.
This vulnerability could be exploited, leading the victim's browser to download an harmful script.
This may allow the attacker to send a remote shell or backdoor to the victim's computer.
This vulnerability is only exploitable on PHP versions prior to 4.4.2 and 5.1.2. Later versions prevent header split injection by limiting each header to a single line.
Generally, by using this kind of exploit, might be possible to send harmful scripts to the victim's computer.
Aiming a correct resolution of the identified vulnerability, the data obtained through the $_GET['name'] input argument should be properly sanitized for HTML usage.
At the moment, there is no official solution for the reported vulnerabilities.