Ingate Firewall and SIParator before 4.5.2 allow remote attackers to bypass SIP authentication via a certain maddr parameter.
CVSS Severity (version 2.0):
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information
The vendor has addressed this issue through the release of a product upgrade: http://www.ingate.com/upgrades.php
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Vulnerable software and versions