IO Slaves KDE Insufficient Input Validation

`Vulnerability title: Insufficient Input Validation By IO Slaves In KDE e.V. KDE  
CVE: CVE-2014-8600  
Vendor: KDE e.V.  
Product: KDE  
Affected version: kwebkitpart <= 1.3.4, kde-runtime <= 4.14.3, kio-extras <= 5.1.1  
Fixed version: Contact distribution vendor  
Reported by: T. Brown and D. Burton  
Details:  
  
Whilst investigating how KDE handles custom protocols, it was discovered that a number of the protocol handlers (referred to as IO slaves) did not satisfactorily handle malicious input. It is possible for an attacker to inject JavaScript by manipulating IO slave URI such that the JavaScript from the manipulated request is returned in the response. Example IO slaves that trigger this behaviour include:  
  
zip  
trash  
tar  
thumbnail  
smtps  
smtp  
smb  
remote  
recentdocuments  
nntps  
nntp  
network  
mbox  
ldaps  
ldap  
fonts  
file  
desktop  
cgi  
bookmarks  
ar  
  
The following code will trigger all vulnerable IO slaves:  
  
for x in /usr/share/kde4/services/*.protocol do proto=`basename $x | cut -f 1 -d\.` kfmclient newTab "$proto://hhdhdhhdhdhdh.google.com/\"><script>alert(\"$proto\"+document.domain);</script>"  
done  
  
Further details at:  
  
https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-8600/  
  
Copyright:  
Copyright (c) Portcullis Computer Security Limited 2014, All rights reserved worldwide. Permission is hereby granted for the electronic redistribution of this information. It is not to be edited or altered in any way without the express written consent of Portcullis Computer Security Limited.  
  
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