[NEWS] Sybase EAServer Buffer Overflow

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Sybase EAServer Buffer Overflow
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SUMMARY

"Sybase EAServer is the open application server for powering business
critical applications that provide the lowest total cost of ownership."

A buffer overflow vulnerability has been discovered in EAServer, if
exploited, this can result in user-specified code being executed under the
security context of the jagsrv.exe process.

DETAILS

Vulnerable Systems:
* Sybase EAServer versions 4.2.5 up to 5.2

After authenticating to /WebConsole/ if an attacker sets the value of the
JavaScript parameter in TreeAction.do to a large value a return address
can be overwritten due to a stack-based buffer overflow.

Patch Availability:
The issue is resolved by applying the following EBFs to the correct
platform and version. Each EBFs are available from the Sybase EBFs and
Maintenance site at <http://downloads.sybase.com/>
http://downloads.sybase.com/

Vendor Status:
Sybase was contacted on 05/05/2005.
Vendor released advisory corresponding this issue:
<http://www.sybase.com/detail?id=1036742>
http://www.sybase.com/detail?id=1036742

ADDITIONAL INFORMATION

The information has been provided by <mailto:spilabs@spidynamics.com>
David Dewey.
The original article can be found at:
<http://www.sybase.com/detail?id=1036742>
http://www.sybase.com/detail?id=1036742

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