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vulnerability alert 12981

CheckPoint Security Gateway: information disclosure via VoIP

Synthesis of the vulnerability

When SecureXL is enabled on caller side, an attacker can capture VoIP communications of CheckPoint Security Gateway, in order to obtain sensitive information.
Impacted products: GAiA, CheckPoint Power-1 Appliance, Provider-1, SecurePlatform, CheckPoint Security Gateway, CheckPoint UTM-1 Appliance, CheckPoint VSX-1.
Severity of this bulletin: 2/4.
Consequences of an intrusion: data reading, data flow.
Hacker's origin: internet client.
Creation date: 17/06/2013.
Références of this threat: sk92814, VIGILANCE-VUL-12981.

Description of the vulnerability

CheckPoint Security Gateway allow establish VoIP calls thorough a VPN.

The VoIP signaling is exchanged via the SIP protocol. However, when SecureXL is enabled in the VPN end point at caller side, SIP messages are sent in plain text instead of begin encrypted as part of VPN traffic. This allows an attacker located in the public network to capture signaling traffic.

When SecureXL is enabled on caller side, an attacker can therefore capture VoIP communications of CheckPoint Security Gateway, in order to obtain sensitive information.
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