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 ...

CVE-2011-1640

The ethernet-lldp component in Cisco IOS 12.2 before 12.233SXJ1 does not properly support a large number of LLDP Management Address MA TLVs, which allows remote attackers to cause a denial of service device crash via crafted LLDPDUs, aka Bug ID CSCtj22354...

Code injection

The ethernet-lldp component in Cisco IOS 12.2 before 12.233SXJ1 does not properly support a large number of LLDP Management Address MA TLVs, which allows remote attackers to cause a denial of service device crash via crafted LLDPDUs, aka Bug ID CSCtj22354...

CVE-2011-1640

The ethernet-lldp component in Cisco IOS 12.2 before 12.233SXJ1 does not properly support a large number of LLDP Management Address MA TLVs, which allows remote attackers to cause a denial of service device crash via crafted LLDPDUs, aka Bug ID CSCtj22354...

CVE-2011-1640

The CVE-2011-1640 entry concerns Cisco IOS 12.2 prior to 12.2(33)SXJ1, where the ethernet-lldp component improperly handles a large number of LLDP Management Address TLVs. This can allow a remote attacker to cause a denial of service (device crash) by sending crafted LLDPDUs. Affected product/ver...