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.

Disclaimer:
The information herein contained may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security
Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.



###############################################################
This email originates from the systems of Portcullis
Computer Security Limited, a Private limited company, 
registered in England in accordance with the Companies 
Act under number 02763799. The registered office 
address of Portcullis Computer Security Limited is: 
Portcullis House, 2 Century Court, Tolpits Lane, Watford, 
United Kingdom, WD18 9RS.  
The information in this email is confidential and may be 
legally privileged. It is intended solely for the addressee. 
Any opinions expressed are those of the individual and 
do not represent the opinion of the organisation. Access 
to this email by persons other than the intended recipient 
is strictly prohibited.
If you are not the intended recipient, any disclosure, 
copying, distribution or other action taken or omitted to be 
taken in reliance on it, is prohibited and may be unlawful. 
When addressed to our clients any opinions or advice 
contained in this email is subject to the terms and 
conditions expressed in the applicable Portcullis Computer 
Security Limited terms of business.
###############################################################

#####################################################################################
This e-mail message has been scanned for Viruses and Content and cleared 
by MailMarshal.
#####################################################################################


<p>