Cisco comes out with their own security warnings

Cisco comes out with their own security warnings

If a security flaw in the software was not enough for today as Microsoft alerted the users of Windows XP Operating System about a new flaw, Cisco itself has come out with multiple security warnings of their own for their customers. The company has identified multiple issues in their range of hardware solutions for VoIP services, which can result in DoS attacks.

One of the most crucial flaws was reported Tuesday when Cisco warned that hackers could cripple its Internet telephony networks by exploiting flaws in its CallManager software. This application is a crucial aspect of the Cisco’s technology used for VoIP services. The company has now released a patch to solve this problem. Internet Security Systems (ISS) who have released an application, which can block these attacks as the networks apply the patch, have supported them.

Multiple versions of CallManager software are affected by these flaw. CallManager 3.3 and earlier, 4.0 and 4.1 would be required to be updated with this latest update. However, the company is yet to receive any complaint from their customers about any such attack on their networks. The company is one of the biggest suppliers of VoIP phones to customers throughout the world and has claimed to have sold more than 5 million units.

Neel Mehta, team lead of advanced research for ISS said in a statement: “Because VoIP software is still relatively immature, it is less secure than other telephony solutions. There are also problems with the design of VoIP protocols that causes concern for people. These weaknesses haven’t been exploited widely by hackers yet. But VoIP deployments are increasing fast, so it will become a bigger and bigger target.”