SecureW2 Insecure Pre-Master Secret Generation Vulnerability

BID:14947

Info

SecureW2 Insecure Pre-Master Secret Generation Vulnerability

Bugtraq ID: 14947
Class: Design Error
CVE:
Remote: Yes
Local: No
Published: Sep 26 2005 12:00AM
Updated: Sep 26 2005 12:00AM
Credit: Simon Josefsson <[email protected]> discovered this vulnerability.
Vulnerable: Alfa & Ariss SecureW2 3.1.1
Alfa & Ariss SecureW2 3.1 .0
Alfa & Ariss SecureW2 3.0 .0
Not Vulnerable: Alfa & Ariss SecureW2 3.1.2

Discussion

SecureW2 Insecure Pre-Master Secret Generation Vulnerability

SecureW2 is susceptible to an insecure pre-master secret generation vulnerability. This issue is due to a design flaw in the application that causes weak random numbers to be used in a cryptographic operation.

Due to the insecure use of random number generator functions, the secret used in further client-server communications may be predicted by attackers. This may lead to the loss of security properties associated with the EAP-TTLS protocol, leading to a false sense of security.

By exploiting this vulnerability, attackers may gain access to the cleartext contents of encrypted communication, aiding them in further attacks. Man-in-the-middle, and other attacks may also be possible.

Exploit / POC

SecureW2 Insecure Pre-Master Secret Generation Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

SecureW2 Insecure Pre-Master Secret Generation Vulnerability

Solution:
The vendor has addressed this issue in version 3.1.2:


Alfa & Ariss SecureW2 3.0 .0

Alfa & Ariss SecureW2 3.1 .0

Alfa & Ariss SecureW2 3.1.1

References

SecureW2 Insecure Pre-Master Secret Generation Vulnerability

References:

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