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TITLE:
Xerox WorkCentre LPD Implementation Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA36465

VERIFY ADVISORY:
http://secunia.com/advisories/36465/

DESCRIPTION:
A vulnerability has been reported in Xerox WorkCentre, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in the LPD daemon when
handling overly large queue names. This can be exploited to crash an
affected device by sending specially crafted LPD requests and e.g.
multiple HTTP requests to the web interface.

The vulnerability is reported in Xerox WorkCentre 7132, 7232/7242,
7328/7335/7345/7346, and 7425/7428/7435.

SOLUTION:
Xerox WorkCentre 7232/7242:
Update to the latest firmware version.

Xerox WorkCentre 7132, 7328/7335/7345/7346, and 7425/7428/7435:
Restrict network access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Louhi Networks Information Security Research

ORIGINAL ADVISORY:
Louhi Networks Information Security Research:
http://www.louhinetworks.fi/advisory/xerox_0908.txt

Xerox:
http://download.support.xerox.com/pub/drivers/WC7232_WC7242/firmware/winvistax64/en/dc09rn2306crn.pdf

OTHER REFERENCES:
CERT-FI:
http://www.cert.fi/haavoittuvuudet/2009/haavoittuvuus-2009-081.html

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