VoIP Security Essentials

VoIP experts may advocate different protocols because each has its merits, but there are several things to consider for most VoIP protocols on security issues: using best security advice eliminates additional risks and attacks. Key to VoIP security check if VoIP is implemented, security is an important consideration because every node in VoIP is as accessible as a computer. The vulnerability of VoIP to Dos attacks and hacking gateways can lead to problems such as unauthorized free calls, call eavesdropping, and redirection of malicious calls. VoIP also poses certain security challenges. For example, two parts of a VoIP call (call establishment information and actual call media flow) must be reviewed. In fact, only the number of VoIP-related security incidents reported this year is more than the total reported in all years 2004 years ago. There are several VoIP protocols. VoIP experts may advocate different protocols because each has its merits, but there are several things to consider for most VoIP protocols on security issues: using best security advice eliminates additional risks and attacks. VoIP Security vulnerabilities VoIP infrastructure requires the addition of dedicated switch systems, gateways, proxies, registration and positioning servers, and calls to the IP backbone network. Each VoIP component is addressable and accessible on the data network like other computers. Each VoIP component includes a processor running the software and a TCP/IP stack that may be compromised. Attacks on data communications can be performed through an IP voice infrastructure. Dos attacks against vulnerable VoIP components can reduce network performance or stop voice and data communications with bogus voice traffic congestion networks. In addition, PC-based soft phones can be easily tapped if the PC is infected with a Trojan horse that intercepts LAN traffic packets. VoIP vulnerabilities can also be exploited to launch bounce attacks against servers and hosts in the DMZ (demilitarized zone). In short, VoIP makes voice communications the same security threat as data communications. At the same time, VoIP also poses some security challenges. VoIP phone calls have two components-call established Exchange signaling information and transfer "voice" media streams. Signaling and media paths are separate and require a logical connection between the two parts of communication using VoIP. VoIP security recommendations to meet the requirements on the premise of the use of different protocols and different manufacturers of VOIP equipment issues may be both pros and cons. To make sure that the device you choose meets your needs, changing your requirements to support a specific vendor's device is a risky behavior. Stop using unnecessary protocols the unknown vulnerabilities of some protocols are often exploited. There is no need to enable unnecessary and unused protocols and services to provide more opportunities for hackers. Ensure manageability because every component in the VoIP infrastructure is like any computerEasy access, so it's possible to be attacked. Even for phones and terminals, all VoIP systems are software systems that run on a hardware basis, so be sure to manage this basic VoIP operating system. Authenticate remote operations VoIP terminals can be upgraded and managed remotely. Be sure to use only the unique user name based on the IP address. The last thing you need is a remote program that manages the service. Separate VoIP services from the internal network there are several security devices that do not fully run VoIP signaling commands. As a result, they may open dynamic communication ports, making the network vulnerable to bounce attacks. This can allow attackers to invade other critical business components within the internal LAN. At the same time, VoIP and other ip-based infrastructures should be separated by physical or logical separators. Security systems that can check for VoIP must be able to review the VoIP stream, analyze the call status, and check the service contents to ensure that all parameters are consistent. In addition to the above issues to consider, you should also consider the impact of network address translation (NAT) on VoIP traffic. (Responsible editor: ZHAOHB) to force (0 Votes) Tempted (0 Votes) nonsense (0 Votes) Professional (0 Votes) The title party (0 Votes) passing (0 Votes) The original text: VoIP security check points back to network safety home