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secunia-iprintboundary.txt

secunia-iprintboundary.txt
Posted Sep 3, 2008
Authored by Carsten Eiram | Site secunia.com

Secunia Research has discovered a vulnerability in Novell iPrint Client, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to a boundary error within the "IppCreateServerRef()" function in nipplib.dll. This can be exploited to cause a heap-based buffer overflow by passing an overly long, specially crafted string as argument to either "GetPrinterURLList()", "GetPrinterURLList2()", or "GetFileList2()" as provided by the Novell iPrint ActiveX control (ienipp.ocx). Successful exploitation may allow execution of arbitrary code.

tags | advisory, overflow, arbitrary, activex
advisories | CVE-2008-2436
SHA-256 | e699e714cb91f13aebcf4f514a87db66114a8b4c8b623bc39df1bb5445e65ef5

secunia-iprintboundary.txt

Change Mirror Download
====================================================================== 

Secunia Research 03/09/2008

- Novell iPrint Client -
- nipplib.dll "IppCreateServerRef()" Buffer Overflow -

======================================================================
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

======================================================================
1) Affected Software

* Novell iPrint Client 4.36
* Novell iPrint Client for Vista 5.04
* Novell iPrint Client for Vista 5.06

NOTE: Other versions may also be affected.

======================================================================
2) Severity

Rating: Highly critical
Impact: System compromise
Where: Remote

======================================================================
3) Vendor's Description of Software

"Neither you nor your users have time to devote to a complex printing
environment. That's why Novell iPrint extends print services securely
across multiple networks and operating systems. Using proven Internet
technologies, iPrint transforms your Novell Distributed Print
Services™ (NDPS®) printers into Net-enabled printers, making all your
printing resources instantly accessible with a Web browser and a few
mouse clicks".

Product Link:
http://www.novell.com/products/openenterpriseserver/iprint.html

======================================================================
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Novell iPrint
Client, which can be exploited by malicious people to compromise a
user's system.

The vulnerability is caused due to a boundary error within the
"IppCreateServerRef()" function in nipplib.dll. This can be exploited
to cause a heap-based buffer overflow by passing an overly long,
specially crafted string as argument to either "GetPrinterURLList()",
"GetPrinterURLList2()", or "GetFileList2()" as provided by the
Novell iPrint ActiveX control (ienipp.ocx).

Successful exploitation may allow execution of arbitrary code.

======================================================================
5) Solution

Update to version 4.38 or 5.08.

======================================================================
6) Time Table

25/08/2008 - Vendor notified.
26/08/2008 - Vendor response.
03/09/2008 - Public disclosure.

======================================================================
7) Credits

Discovered by Carsten Eiram, Secunia Research.

======================================================================
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2008-2436 for the vulnerability.

======================================================================
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://corporate.secunia.com/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.

http://secunia.com/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:

http://corporate.secunia.com/secunia_research/33/


Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/secunia_vacancies/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/

======================================================================
10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2008-33/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================
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