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Home arrow SecurityAlert Database

Arrow  Topic :

Konqueror DoS Via JavaScript Read Of FTP Iframe


Arrow  SecurityAlert : 2345
Arrow  CVE : CVE-2007-1308
Arrow  SecurityRisk : Medium  Security Risk Medium  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : Yes
Arrow  Exploit Available : Yes
Arrow  Credit : mark
Arrow  Published : 09.03.2007

Arrow  Affected Software : Konqueror



Arrow  Advisory Content :  

Summary

Konqueror crashes if JavaScript code tries to read the source of a child
iframe which is set to an ftp:// URL.

Impact

It is possible for malicious websites to crash Konqueror and possibly
other applications with rely on KJS.

Details

The KDE JavaScript implementation, KJS has been found to crash when it
tries to read the contents of an FTP iframe. This can be demonstrated
by creating a web page with an iframe with a src of
"ftp://localhost/anything", then reading the contents of this iframe
with JavaScript similar to the following. (A working FTP server is not
required).

var contents =
document.getElementById(iframe_name).contentWindow.document.body.innerHT
ML;

Exploit

Proof of concept code is available at:
http://bindshell.net/advisories/konq355

Vulnerable Versions

This vulnerability has been tested on Gentoo and Debian running KDE 3.5.5.

Reported By

mark (at) bindshell (dot) net [email concealed]
http://bindshell.net/advisories/konq355

Disclosure Timeline

2007-02-03 Vulnerability reported to security (at) kde (dot) org [email
concealed]
2007-02-28 KDE team recreate bug and produce preliminary patch for
nodes.cpp
2007-03-01 KDE team produced updated patch for ecma/kjs_html.cpp
2007-03-04 Public advisory released

Patch Information

The latest patch received from the KDE team is available from:
http://bindshell.net/advisories/konq355/konq355-patch.diff




Arrow  Feedback :

If you have additional information or notice any errors regarding this security advisory, please use contact form or email us at info()securityreason()com.
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