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Digital Defense VRT Advisory 2008.19

Digital Defense VRT Advisory 2008.19
Posted Feb 4, 2009
Authored by Digital Defense, r@b13$, Shmoov | Site digitaldefense.net

The HP-ChaiSOE/1.0 embedded web server on certain HP JetDirect printers allows a potential attacker to gain read only access to directories and files outside of the web root. An attacker can leverage this flaw to read arbitrary system configuration files, cached documents, etc. Information obtained from an affected host may facilitate further attacks against the host. Exploitation of this flaw is trivial using common web server directory traversal techniques. Verified vulnerable systems include the HP JetDirect 2420 and the HP JetDirect 4250.

tags | advisory, web, arbitrary, root
SHA-256 | be8fa162c08d4f572bcb2aef847e724d081ab534467549eef582a0eda6be899e

Digital Defense VRT Advisory 2008.19

Change Mirror Download
Title
-----
DDIVRT-2008-19 HP JetDirect Web Administration Directory Traversal

Severity
--------
High

Date Discovered
---------------
October 23, 2008

Discovered By
-------------
Digital Defense, Inc. Vulnerability Research Team
Credit: Shmoov and r@b13$

Vulnerability Description
-------------------------
The HP-ChaiSOE/1.0 embedded web server on certain HP JetDirect printers allows a potential attacker to gain read only access to directories and files outside of the web root. An attacker can leverage this flaw to read arbitrary system configuration files, cached documents, etc. Information obtained from an affected host may facilitate further attacks against the host. Exploitation of this flaw is trivial using common web server directory traversal techniques.

Solution Description
--------------------
The vendor has released an update. See http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01623905 for more details.
Digital Defense, Inc. recommends restricting access to the HP JetDirect web administration interface to authorized hosts only.

Tested Systems / Software (with versions)
------------------------------------------
Embedded web server HP-ChaiSOE/1.0 on:
HP JetDirect 2420
HP JetDirect 4250


Vendor Contact
--------------
HP
http://www.hp.com
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