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Vulnerability of HP Diagnostics: code execution via magentservice.exe

Synthesis of the vulnerability 

A network attacker can generate a buffer overflow in the HP Diagnostics magentservice.exe service, in order to execute code with system privileges.
Impacted products: HP Diagnostics.
Severity of this bulletin: 3/4.
Creation date: 23/08/2012.
Revision date: 23/01/2013.
Références of this threat: BID-55159, c03645497, CVE-2012-3278, HPSBMU02841, SSRT100724, VIGILANCE-VUL-11883, ZDI-12-162, ZDI-CAN-1287.

Description of the vulnerability 

The HP Diagnostics service uses the magentservice.exe process, which listens on port 23472 by default.

A network attacker can generate a buffer overflow in the HP Diagnostics magentservice.exe service, in order to execute code with system privileges.
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This computer weakness alert impacts software or systems such as HP Diagnostics.

Our Vigil@nce team determined that the severity of this weakness note is important.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this weakness bulletin.

Solutions for this threat 

HP Diagnostics Server: patch.
A patch is available:
  http://support.openview.hp.com/selfsolve/document/FID/DOCUMENTUM_DIAGSRV_00051

HP Diagnostics: workaround for magentservice.exe.
A workaround is to filter access to port 23472/tcp/udp.
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