SNS Vulnerability

Microsoft ADFS "/adfs/ls" Cross-Site Scripting Vulnerability Fixed by MS15-062

Description

A cross-site scripting vulnerability has been identified in the Active Directory Federation Services (ADFS) service of Windows Server.
A remote attacker can enticing their victim into following a specially crafted link in order to execute arbitrary JavaScript/HTML code with victim's rights.
This vulnerability, exploitable via the "wct" parameter of the "/adfs/ls" page, stems from an improper handling of the HTML encoding of HTTP responses.
A proof of concept is available.

Vulnerable Products

Vulnerable OS:
Windows 2008 (Microsoft) - Server SP2, X64 Edition SP2Windows 2008 R2 (Microsoft) - X64-systems SP1Windows 2012 (Microsoft) - ServerVulnerable Software:

Solution

Microsoft has published the MS15-040 which fixes this vulnerability and replaces the MS14-077 bulletin.Workaround:Microsoft has released a pattern to block in order to prevent against any attempt of exploitation.

CVE

CVE-2015-1757

References

- MS15-062 : Vulnerability in Active Directory Federation Services Could Allow Elevation of Privilege
https://technet.microsoft.com/library/security/en-us/MS15-062

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

2015-06-09

Target Type

Client

Possible exploit

Remote