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Zero Day Initiative Advisory 09-076

Zero Day Initiative Advisory 09-076
Posted Nov 5, 2009
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 09-076 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sun Microsystems Java. User interaction is required in that a user must open a malicious file or visit a malicious web page. The specific flaw exists in the parsing of long file:// URL arguments to the getSoundbank() function. Due to a lack of bounds checking on user supplied data a stack overflow can occur leading to remote code execution. Exploitation of this vulnerability can lead to system compromise under the credentials of the currently logged in user.

tags | advisory, java, remote, web, overflow, arbitrary, code execution
MD5 | b6ec340f1f01b77c83ba1d48458f3ab3

Zero Day Initiative Advisory 09-076

Change Mirror Download
ZDI-09-076: Sun Java HsbParser.getSoundBank Stack Buffer Overflow Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-09-076
November 4, 2009

-- Affected Vendors:
Sun Microsystems

-- Affected Products:
Sun Microsystems Java Runtime

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 8700.
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 Sun Microsystems Java. User interaction is
required in that a user must open a malicious file or visit a malicious
web page.

The specific flaw exists in the parsing of long file:// URL arguments to
the getSoundbank() function. Due to a lack of bounds checking on user
supplied data a stack overflow can occur leading to remote code
execution. Exploitation of this vulnerability can lead to system
compromise under the credentials of the currently logged in user.

-- Vendor Response:
Sun Microsystems has issued an update to correct this vulnerability. More
details can be found at:

http://sunsolve.sun.com/search/document.do?assetkey=1-66-270474-1

-- Disclosure Timeline:
2009-06-23 - Vulnerability reported to vendor
2009-11-04 - 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/
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