Apache Sling Servlets Post CVE-2017-9802 Cross Site Scripting Vulnerability

Bugtraq ID:	100284
Class:	Input Validation Error
CVE:	CVE-2017-9802
Remote:	Yes
Local:	No
Published:	Aug 14 2017 12:00AM
Updated:	Aug 14 2017 12:00AM
Credit:	Dmitriev V.
Vulnerable:	Apache Sling Servlets Post 2.3.20
Not Vulnerable:	Apache Sling Servlets Post 2.3.22

Apache Sling Servlets Post CVE-2017-9802 Cross Site Scripting Vulnerability

Apache Sling Servlets Post is prone to a cross-site scripting vulnerability because it fails to sanitize user-supplied input.

An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and launch other attacks.

Apache Sling Servlets Post 2.3.20 is vulnerable; other versions may also be affected.

Apache Sling Servlets Post CVE-2017-9802 Cross Site Scripting Vulnerability

An attacker can exploit this issue by enticing an unsuspecting user into visiting a specially crafted URL.

Apache Sling Servlets Post CVE-2017-9802 Cross Site Scripting Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Apache Sling Servlets Post CVE-2017-9802 Cross Site Scripting Vulnerability

References:

• Apache Homepage (Apache)
  
• Use JSON parsing in Sling.evalString (Apache)