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AUSCERT External Security Bulletin Redistribution
ESB-2010.0690
Multiple vulnerabilities identified in Novell iPrint
6 August 2010
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AusCERT Security Bulletin Summary
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Product: Novell iPrint Server
Novell iPrint Client
Publisher: Zero Day Initiative
Operating System: Windows
Linux variants
Mac OS X
Netware
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
Original Bulletin:
http://www.zerodayinitiative.com/advisories/ZDI-10-138/
http://www.zerodayinitiative.com/advisories/ZDI-10-139/
http://www.zerodayinitiative.com/advisories/ZDI-10-140/
Comment: This bulletin contains three (3) Zero Day Initiative security
advisories.
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Novell iPrint Server Queue Name Remote Code Execution Vulnerability
ZDI-10-138: August 5th, 2010
CVSS Score
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
Affected Vendors
Novell
Affected Products
iPrint
TippingPoint IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by Digital
Vaccine protection filter ID 8562. 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 Server. Authentication is not
required to exploit this vulnerability.
The flaw exists within the '/opt/novell/iprint/bin/ipsmd' component this
component communicates with 'ilprsrvd' which listens on TCP port 515. When
handling an LPR opcode 0x01 packet type the process blindly copies 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
iprint user.
Vendor Response
Novell has issued an update to correct this vulnerability. More details can be
found at:
http://download.novell.com/Download?buildid=ftwZBxEFjIg~
Disclosure Timeline
2010-07-20 - Vulnerability reported to vendor
2010-08-05 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Francis Provencher for Protek Research Lab's
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Novell iPrint Client Browser Plugin Parameter Name Remote Code Execution
ZDI-10-139: August 5th, 2010
CVSS Score
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Affected Vendors
Novell
Affected Products
iPrint
TippingPoint IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by Digital
Vaccine protection filter ID 9882. 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 the Novell iPrint Client browser plugin. User
interaction is required in that a target must visit a malicious web page.
The specific flaw exists within handling plugin parameters. The application
does not properly verify the name of parameters passed via <embed> tags. If a
malicious attacker provides a long enough value a destination buffer can be
overflowed. Successful exploitation leads to execution of arbitrary code under
the context of the user owning the browser process.
Vendor Response
Novell has issued an update to correct this vulnerability. More details can be
found at:
http://download.novell.com/Download?buildid=ftwZBxEFjIg~
Disclosure Timeline
2010-06-02 - Vulnerability reported to vendor
2010-08-05 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Ivan Almuina
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Novell iPrint Client Browser Plugin operation Parameter Remote Code Execution
Vulnerability
ZDI-10-140: August 5th, 2010
CVSS Score
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Affected Vendors
Novell
Affected Products
iPrint
TippingPoint IPS Customer Protection
TippingPoint IPS customers are protected against this vulnerability by Digital
Vaccine protection filter ID 9917. 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 the Novell iPrint Client Browser Plugin. User
interaction is required to exploit this vulnerability in that the target must
visit a malicious page or open a malicious file.
The specific flaw exists within handling plugin parameters. Specifically, a
long value for the operation parameter can trigger a stack-based buffer
overflow. Successful exploitation leads to execution of arbitrary code under
the context of the user running the browser process.
Vendor Response
Novell has issued an update to correct this vulnerability. More details can be
found at:
http://download.novell.com/Download?buildid=ftwZBxEFjIg~
Disclosure Timeline
2010-06-02 - Vulnerability reported to vendor
2010-08-05 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Ivan Rodriguez Almuina
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