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Zero Day Initiative Advisory 12-039

Zero Day Initiative Advisory 12-039
Posted Feb 23, 2012
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 12-039 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Oracle Java. 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 the way Java Webstart handles the 'java-vm-args' parameter in the j2se tag within a jnlp file. Due to insufficient sanitation it is possible to add additional double quotes to the commandline argument string used to start a new java process. This can lead to remote code execution under the rights of the current user.

tags | advisory, java, remote, arbitrary, code execution
MD5 | 651b5441e65bd315cdda098b21e89a94

Zero Day Initiative Advisory 12-039

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

ZDI-12-039 : Oracle Java Web Start java-vm-args Command Argument
Injection Remote Code Execution
http://www.zerodayinitiative.com/advisories/ZDI-12-039
February 22, 2012

- -- CVE ID:


- -- CVSS:
9, AV:N/AC:L/Au:N/C:P/I:P/A:C

- -- Affected Vendors:

Oracle



- -- Affected Products:

Oracle Java Runtime



- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 12107.
For further product information on the TippingPoint IPS, visit:

http://www.tippingpoint.com

- -- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Oracle Java. 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 the way Java Webstart handles the
'java-vm-args' parameter in the j2se tag within a jnlp file. Due to
insufficient sanitation it is possible to add additional double quotes
to the commandline argument string used to start a new java process.
This can lead to remote code execution under the rights of the current user.


- -- Vendor Response:

Oracle has issued an update to correct this vulnerability. More details
can be found at:

http://www.oracle.com/technetwork/topics/security/javacpufeb2012-366318.html




- -- Disclosure Timeline:
2011-11-21 - Vulnerability reported to vendor

2012-02-22 - Coordinated public release of advisory



- -- Credit:
This vulnerability was discovered by:

* Anonymous



- -- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

http://www.zerodayinitiative.com/advisories/disclosure_policy/

Follow the ZDI on Twitter:

http://twitter.com/thezdi
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