[Snort-sigs] sid 1177

Christopher_Lubrecht at ...381... Christopher_Lubrecht at ...381...
Thu Mar 14 19:30:01 EST 2002


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Rule:
alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS 80 (msg:"WEB-MISC Netscape Enterprise
Server directory view"; flags: A+;
uricontent:"?wp-verify-link";nocase;reference:bugtraq,1063;
classtype:attempted-recon; sid:1177; rev:2;)
--
Sid:
1177
--
Summary:
Netscape Enterprise Server 3.x is shipped with an insecure directory indexing
feature, enabled by default. This feature can be utilized by simply appending
commands to the end of the URL.
--
Impact:
This vulnerability can be used to fingerprint your webservers, and give the
attacker access to information stored on your webserver. In extreme cases, (such
as a server run in a non-chrooted environment), the attacker could gain access to
more sensitive system files, which could lead to machine or network compromise.
--
Detailed Information:
The attacker can browse your webserver directory structure, by attaching one of
many commands to the end of a standard URL.

ex. http://www.target.server/?wp-cs-dump

Additional commands include the following, each accomplishing the same as the
above:

?wp-ver-info
?wp-html-rend
?wp-usr-prop
?wp-ver-diff
?wp-verify-link
?wp-start-ver
?wp-stop-ver
?wp-uncheckout


--
Attack Scenarios:
An 'exploit' to scan for this vulnerability, exists in the 'wild'. While this
exploit only scans a single host. it could be scripted into a large scanning
suite. The attacker might run this scan unattended, and single out networks for
attack at a later date. The information gathered might make one server more
attractive than another.
--
Ease of Attack:
Easy
--
False Positives:

--
False Negatives:

--
Corrective Action:
Disable this feature in the server configuration.
--
Contributors:
Christopher Lubrecht - chris_lubrecht at ...382...
--
Additional References:
bugtraq 1063














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