VoIP VLAN Hopper

VoIP Hopper is a GPLv3 licensed security tool, written in C, that rapidly runs a VLAN Hop into the Voice VLAN on specific ethernet switches. VoIP Hopper does this by mimicking the behavior of an IP Phone, in Cisco, Avaya, Nortel, and Alcatel-Lucent environments. This requires two important steps ...

Hackers Push Sipvicious VoIP Tools In Malicious Attacks

Researchers at NSS Labs claim that they’ve spotted attacks that use Sipvicious, a common auditing tool for Voice over IP VoIP networks as part of malicious attacks aimed at taking control of vulnerable VoIP servers. The attacks are apparently aimed at taking control of VoIP servers to place...

More Vulnerabilities with Pingtel xpressa SIP-based IP phones

The Sys-Security Group Security Advisory "More Vulnerabilities with Pingtel xpressa SIP-based IP Phones" Release Date: 08/20/2002 Affected Platforms: Pingtel xpressa SIP IP phones model PX-1 with software version 2.0.1 and below; Pingtel instant xpressa softphones with software version 2.0.1 and...