Nortel Contivity VPN Client Username Enumeration Vulnerability

BID:11623

Info

Nortel Contivity VPN Client Username Enumeration Vulnerability

Bugtraq ID: 11623
Class: Design Error
CVE:
Remote: Yes
Local: No
Published: Nov 08 2004 12:00AM
Updated: Nov 08 2004 12:00AM
Credit: K. K. Mookhey of Network Intelligence India reported this vulnerability.
Vulnerable: Nortel Networks Contivity VPN Client 4.91
Not Vulnerable: Nortel Networks Contivity VPN Client 5.0 1_030

Discussion

Nortel Contivity VPN Client Username Enumeration Vulnerability

It is reported that Nortel Contivity VPN client is susceptible to a username enumeration vulnerability.

Attackers may exploit this vulnerability to discern valid usernames. This may aid them in brute force password cracking, or other attacks.

Versions prior to 5.01_030 are reported susceptible to this issue.

Exploit / POC

Nortel Contivity VPN Client Username Enumeration Vulnerability

An exploit is not required.

Solution / Fix

Nortel Contivity VPN Client Username Enumeration Vulnerability

Solution:
The vendor has released version 5.01_030 of the affected package. Contact the vendor for information about obtaining fixed versions of the package.

References

Nortel Contivity VPN Client Username Enumeration Vulnerability

References:

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