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Category:   Device (Printer)  >   JetDirect Vendors:   HP
JetDirect FTP Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1017532
SecurityTracker URL:
CVE Reference:   CVE-2007-1772   (Links to External Site)
Updated:  May 3 2007
Original Entry Date:  Jan 18 2007
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): firmware x.20.nn up to and including x.24.nn
Description:   A vulnerability was reported in JetDirect. A remote user can cause denial of service conditions.

A remote user can open a passive FTP connection and send a RERT command with a specially crafted pathname value to cause the target engine to crash.

A demonstration exploit was provided [using python]:

python /usr/lib/python2.4/ -d [target] -l -p `python -c 'print "A"*300'`

Handrix from MorX security research team reported the details of this vulnerability.

Impact:   A remote user can cause the target engine to crash.
Solution:   HP has issued a fix.

For J4169A 610n - upgrade the firmware to version L.25.nn or greater.

For J6057A 615n - upgrade the firmware to version R.25.nn or greater.

Instructions for upgrading Jetdirect firmware are available at:

The HP advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Not specified
Underlying OS:  

Message History:   None.

 Source Message Contents

Date:  Thu, 18 Jan 2007 07:34:33 -0500
Subject:  HPSBPI02185 SSRT071290 rev.1 - HP Jetdirect Running ftp, Remote Denial of Service (DoS)

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