SNS Vulnerability

POSH Cross-Site Scripting and File Inclusion Vulnerabilities

Description

Two vulnerabilities have been discovered in POSH, which can be exploited by malicious users to disclose potentially sensitive information and by malicious people to conduct cross-site scripting attacks.
1) Input passed to the "lang" parameter in portal/scr_changelang.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local resources via directory traversal attacks and URL-encoded NULL bytes.
2) Input passed to the "message" parameter in portal/login.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
The vulnerabilities are confirmed in version 3.1.1. Prior versions may also be affected.

Vulnerable Products

Vulnerable Software:
POSH 3.x

Solution

Update to version 3.1.2.

CVE

References

http://www.exploit-db.com/exploits/17959/

Vulnerability Manager Detection

IPS Protection

ASQ Engine alarm	Available Since
XSS - Prevention - GET : suspicious 'iframe' tag found in URL	3.2.0
XSS - Prevention - GET : suspicious 'meta' tag found in URL	3.2.0
Misc : Directory traversal - parameter starting with ../	3.2.0
XSS - Prevention - GET : suspicious tag with event found in URL	3.2.0
XSS - Prevention - GET : suspicious 'applet' tag found in URL	3.2.0
PHP : Remote file inclusion prevention : suspicious root_path parameter found in URL	3.2.0
Directory traversal using ..\..	3.2.0
XSS - Phishing : suspicious 'div' tag found in URL	3.2.0
XSS - Prevention - GET : suspicious 'style' attribute found in URL	3.2.0
XSS - Prevention - GET : suspicious 'img' tag found in URL	3.2.0
Directory traversal	3.2.0
XSS - Phishing : suspicious 'a' tag found in URL	3.2.0
XSS - Prevention - GET : cookie access attempt using script language found in URL	3.2.0
PHP : Remote file inclusion prevention : URL found as parameter	3.2.0
XSS - Prevention - GET : suspicious 'embed' tag found in URL	3.2.0
XSS - Prevention - GET : suspicious 'object' tag found in URL	3.2.0
XSS - Phishing : suspicious 'form' tag found in URL	3.2.0
XSS - Prevention - GET : javascript code found in URL	3.2.0
XSS - Prevention - GET : evasion attempt using tag characters encoding in URL	3.2.0
Directory traversal backward root folder	3.2.0
XSS - Prevention - GET : suspicious 'style' tag found in URL	3.2.0
XSS - Phishing : suspicious 'link' tag found in URL	3.2.0
XSS - Prevention - GET : 'script' tag found in URL	3.2.0
XSS - Prevention - GET : 'location' javascript object found in URL	3.2.0
Escaped NULL char in URL	3.2.0
XSS - Prevention - GET : suspicious 'div' tag found in URL	3.2.0
Misc : Local File Inclusion - suspicious /etc/passwd found in URL	3.5.0

Risk level

Low

Vulnerability First Public Report Date

2011-10-12

Target Type

Server

Possible exploit

Remote