SNS Vulnerability

TYPO3 "RemoveXSS.php" Cross-site Scripting Filter Bypass Vulnerability

Description

(:A security bypass vulnerability was reported in the Anti-XSS functionnality of TYPO3.:A remote attacker could exploit it by using unfiltered characters in order to conduct cross-site scripting (XSS) attacks.::This vulnerability is due to the fact that the functionality "RemoveXSS.php" is based on the blacklist method which can be circumvented.::A proof of concept is available.)

Vulnerable Products

Vulnerable Software:
Typo3 (Typo3) - 3.3, 3.5, 3.6, 3.7, 3.8, ..., 7.6.0, 7.6.1, 7.6.2, 7.6.3, 7.6.4

Solution

A workaround is available.

CVE

References

- bugtraq : TYPO3 RemoveXSS.php vulnerability versions 6.2.19 and 7.6.4
http://seclists.org/bugtraq/2016/May/94

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
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
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
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
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
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
XSS - Prevention - GET : suspicious 'div' tag found in URL	3.2.0

Risk level

Moderate

Vulnerability First Public Report Date

2016-05-19

Target Type

Server

Possible exploit

Remote