Date: 05 January 2011
Related Files:
ESB-2011.0008
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AUSCERT External Security Bulletin Redistribution
ESB-2011.0008.2
Novell iPrint Client Remote Code Execution Vulnerability
5 January 2011
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AusCERT Security Bulletin Summary
---------------------------------
Product: Novell iPrint Client prior to 5.56
Publisher: Zero Day Initiative
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2010-4321
Original Bulletin:
http://www.zerodayinitiative.com/advisories/ZDI-10-295/
http://www.zerodayinitiative.com/advisories/ZDI-10-296/
http://www.zerodayinitiative.com/advisories/ZDI-10-297/
http://www.zerodayinitiative.com/advisories/ZDI-10-298/
http://www.zerodayinitiative.com/advisories/ZDI-10-299/
http://www.zerodayinitiative.com/advisories/ZDI-10-300/
Comment: This bulletin contains six (6) Zero Day Initiative security
advisories.
Revision History: January 5 2011: Added CVE
January 5 2011: Initial Release
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Novell iPrint Client Netscape/ActiveX printer-state-reasons Remote Code
Execution Vulnerability
ZDI-10-295: December 26th, 2010
CVSS Score
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
Affected Vendors
Novell
Affected Products
iPrint
TippingPoint(TM) IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by
Digital Vaccine protection filter ID 10758. For further product
information on the TippingPoint IPS:
http://www.tippingpoint.com
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code
on vulnerable installations of Novell iPrint Client. User interaction
is required to exploit this vulnerability in that the target must
visit a malicious page or open a malicious file.
The flaw exists within the both the Netscape (Firefox) and ActiveX
(Internet Explorer) plugin components npnipp.dll and ienipp.ocx which
are installed by default with the iPrint client. When handling the
printer-state-reasons operation provided via the embed tag the module
makes a request to the specified printer-url and performs insufficient
validation of the size of the printer-state-reasons status response.
The process then copies this user supplied data into a fixed-length
buffer on the stack. A remote attacker can exploit this vulnerability
to execute arbitrary code under the context of the browser.
Vendor Response
Novell states:
The fix for this security vulnerability is included in the released
"iPrint Client for Windows XP/Vista/Win 7 5.56" patch, available at
http://download.novell.com/Download?buildid=JV7fd0tFHHM~.
Disclosure Timeline
2010-12-06 - Vulnerability reported to vendor
2010-12-26 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Ivan Rodriguez Almuina
Novell iPrint Client Netscape/ActiveX IPP Parameter Remote Code Execution
Vulnerability
ZDI-10-296: December 26th, 2010
CVSS Score
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
Affected Vendors
Novell
Affected Products
iPrint
TippingPoint(TM) IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by
Digital Vaccine protection filter ID 10749. For further product
information on the TippingPoint IPS:
http://www.tippingpoint.com
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code
on vulnerable installations of Novell iPrint Client. User interaction
is required to exploit this vulnerability in that the target must
visit a malicious page or open a malicious file.
The flaw exists within the nipplib.dll component which is used by both
the Mozilla and IE browser plugins for iPrint Client. When handling an
IPP response from a user provided printer-url the process does not
properly validate the size of the destination buffer and copies user
supplied data of an arbitrary length into a fixed length buffer on the
heap. A remote attacker can exploit this vulnerability to execute
arbitrary code under the context of the browser.
Vendor Response
Novell states:
The fix for this security vulnerability is included in the released
"iPrint Client for Windows XP/Vista/Win 7 5.56" patch, available at
http://download.novell.com/Download?buildid=JV7fd0tFHHM~.
Disclosure Timeline
2010-11-30 - Vulnerability reported to vendor
2010-12-26 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Ivan Rodriguez Almuina
Novell iPrint Client Netscape/ActiveX Location Header Remote Code Execution
Vulnerability
ZDI-10-297: December 26th, 2010
CVSS Score
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
Affected Vendors
Novell
Affected Products
iPrint
TippingPoint(TM) IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by
Digital Vaccine protection filter ID 10749. For further product
information on the TippingPoint IPS:
http://www.tippingpoint.com
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code
on vulnerable installations of Novell iPrint Client. Authentication is
not required to exploit this vulnerability.
The flaw exists within the nipplib.dll component which is used by both
the Mozilla and IE browser plugins for iPrint Client. When handling an
HTTP 301 response from a user provided printer-url the process
attempts to copy the returned value within the Location HTTP header
without ensuring that the destination buffer is adequately sized. A
remote attacker can exploit this vulnerability to execute arbitrary
code under the context of the browser.
Vendor Response
Novell states:
The fix for this security vulnerability is included in the released
"iPrint Client for Windows XP/Vista/Win 7 5.56" patch, available at
http://download.novell.com/Download?buildid=JV7fd0tFHHM~.
Disclosure Timeline
2010-11-30 - Vulnerability reported to vendor
2010-12-26 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Ivan Rodriguez Almuina
Novell iPrint Client Netscape Plugin call-back-url Parameter Remote Code
Execution Vulnerability
ZDI-10-298: December 26th, 2010
CVSS Score
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
Affected Vendors
Novell
Affected Products
iPrint
TippingPoint(TM) IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by
Digital Vaccine protection filter ID 10749. For further product
information on the TippingPoint IPS:
http://www.tippingpoint.com
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code
on vulnerable installations of Novell iPrint Client. Authentication is
not required to exploit this vulnerability.
The flaw exists within the npnipp.dll Mozilla browser plugin for
iPrint client. When assembling a URL using the user supplied
call-back-url, the value is passed into a urlencode function where it
is copied into a fixed-length buffer on the stack. A remote attacker
can exploit this vulnerability to execute arbitrary code under the
context of the browser.
Vendor Response
Novell states:
The fix for this security vulnerability is included in the released
"iPrint Client for Windows XP/Vista/Win 7 5.56" patch, available at
http://download.novell.com/Download?buildid=JV7fd0tFHHM~.
Disclosure Timeline
2010-11-30 - Vulnerability reported to vendor
2010-12-26 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Ivan Rodriguez Almuina
Novell iPrint Client Netscape/ActiveX Plugin Wide Character IPP Remote Code
Execution Vulnerability
ZDI-10-299: December 26th, 2010
CVSS Score
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
Affected Vendors
Novell
Affected Products
iPrint
TippingPoint(TM) IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by
Digital Vaccine protection filter ID 10749. For further product
information on the TippingPoint IPS:
http://www.tippingpoint.com
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code
on vulnerable installations of Novell iPrint Client. Authentication is
not required to exploit this vulnerability.
The flaw exists within the nipplib.dll component which is used by both
the Mozilla and IE browser plugins for iPrint Client. When handling an
IPP response from a user provided printer-url the process does not
properly validate the size of the destination buffer and copies user
supplied data of an arbitrary length into a fixed length buffer on the
stack. A remote attacker can exploit this vulnerability to execute
arbitrary code under the context of the browser.
Vendor Response
Novell states:
The fix for this security vulnerability is included in the released
"iPrint Client for Windows XP/Vista/Win 7 5.56" patch, available at
http://download.novell.com/Download?buildid=JV7fd0tFHHM~.
Disclosure Timeline
2010-11-30 - Vulnerability reported to vendor
2010-12-26 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Ivan Rodriguez Almuina
Novell iPrint Client Netscape/ActiveX Plugin HTTP_CONNECTION Remote Code
Execution Vulnerability
ZDI-10-300: December 26th, 2010
CVSS Score
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
Affected Vendors
Novell
Affected Products
iPrint
TippingPoint(TM) IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by
Digital Vaccine protection filter ID 10749. For further product
information on the TippingPoint IPS:
http://www.tippingpoint.com
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code
on vulnerable installations of Novell iPrint Client. Authentication is
not required to exploit this vulnerability.
The flaw exists within the nipplib.dll component used by the the
Mozilla and Internet Explorer browser plugins for iPrint client. When
parsing an HTTP response the Connection response length is in
sufficiently validated before being copied into a fixed-length buffer
on the stack. A remote attacker can exploit this vulnerability to
execute arbitrary code under the context of the browser.
Vendor Response
Novell states:
The fix for this security vulnerability is included in the released
"iPrint Client for Windows XP/Vista/Win 7 5.56" patch, available at
http://download.novell.com/Download?buildid=JV7fd0tFHHM~.
Disclosure Timeline
2010-11-29 - Vulnerability reported to vendor
2010-12-26 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Ivan Rodriguez Almuina
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