First up this week Cisco said a vulnerability in the Session Initiation Protocol (SIP) UDP throttling process of Cisco Unified Communications Manager (Cisco Unified CM) software could let an unauthenticated, remote attacker cause a denial of service (DoS) attack.
A type of denial of service attack relevant in the 1990s has resurfaced with surprising potency against modern-day firewalls. Dubbed a BlackNurse attack, the technique leverages a low-volume Internet Control Message Protocol (ICMP) -based attack on vulnerable firewalls made by Cisco, Palo Alto, SonicWall and others, according to researchers. TDC Security Operations Center, a security […]
We’ve recently received a sample of the bot client that was used by hacker group Lulzsec Brazil in conducting DDoS attacks against Brazilian websites. Those affected included the websites of both the Brazilian government and President. The said attack is not the first of its kind from the group – as the main LulzSec hacking […]
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