[SA20377] Secure Elements Class 5 AVR Message Encryption Security Issue

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TITLE:
Secure Elements Class 5 AVR Message Encryption Security Issue

SECUNIA ADVISORY ID:
SA20377

VERIFY ADVISORY:
http://secunia.com/advisories/20377/

CRITICAL:
Not critical

IMPACT:
Exposure of sensitive information

WHERE:
>From local network

OPERATING SYSTEM:
Secure Elements C5 Enterprise Vulnerability Management (EVM) 2.x
http://secunia.com/product/10250/

DESCRIPTION:
A security issue has been reported in Secure Elements Class 5 AVR,
which potentially can be exploited by malicious people to disclose
certain sensitive information.

The security issue is caused due to the same encryption key and
initialization vector being used to encrypt messages for every
message session. This potentially allows an attacker to discover some
information about the encrypted messages.

The security issue has been reported in version 2.8.1. Prior versions
may also be affected.

SOLUTION:
Restrict access of the network to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Discovered by NCIRT lab and reported via US-CERT.

ORIGINAL ADVISORY:
US-CERT VU#346377:
http://www.kb.cert.org/vuls/id/346377

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