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

2008.09.08
Risk: High
Local: No
Remote: Yes
CWE: CWE-94


Ogólna skala CVSS: 9.3/10
Znaczenie: 10/10
Łatwość wykorzystania: 8.6/10
Wymagany dostęp: Zdalny
Złożoność ataku: Średnia
Autoryzacja: Nie wymagana
Wpływ na poufność: Pełny
Wpływ na integralność: Pełny
Wpływ na dostępność: Pełny

====================================================================== 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/ ======================================================================

Referencje:

http://secunia.com/advisories/31370
http://xforce.iss.net/xforce/xfdb/44853
http://www.securityfocus.com/bid/30986
http://www.securityfocus.com/archive/1/archive/1/495940/100/0/threaded
http://secunia.com/secunia_research/2008-33/advisory


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