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TITLE:
ABB PCU400 X87 Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA32047

VERIFY ADVISORY:
http://secunia.com/advisories/32047/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From local network

SOFTWARE:
ABB PCU 400
http://secunia.com/advisories/product/19970/

DESCRIPTION:
A vulnerability has been reported in ABB PCU400, which can
potentially be exploited by malicious people to compromise a
vulnerable system.

A boundary error in the X87 executable within the handling of IEC
60870-5-101 and IEC 60870-5-104 communication protocols can be
exploited to cause a buffer overflow via specially crafted packets
send to port 8087/TCP.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in the X87 executable prior to version
3.5.5.

SOLUTION:
Update the X87 executable to version 3.5.5 or use the x88 or x89
executables.

PROVIDED AND/OR DISCOVERED BY:
Idan Ofrat of C4 Security

ORIGINAL ADVISORY:
C4 Security:
http://archives.neohapsis.com/archives/bugtraq/2008-09/0283.html

OTHER REFERENCES:
US-CERT VU#343971:
http://www.kb.cert.org/vuls/id/343971

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