Feeds

Multimedia vulns pose severe risk

This could get messy

  • alert
  • submit to reddit

SANS - Survey on application security programs

Numerous VoIP and video conferencing products are subject to serious security vulnerabilities because of widespread flaws in the implementation of a key multimedia protocol, according to an advisory by security clearing house CERT published yesterday.

The issue revolves around faulty implementations of H.323, the multimedia telephony protocol, affecting a wide variety of networking kit including VoIP and video conferencing gear, media gateways and Session Initiation Protocol (SIP) devices and software. The products of numerous vendors, including Cisco, Microsoft and Nortel, are affected. H.323 is an international standard protocol used to facilitate communication among telephony and multimedia systems.

The flaws came to light as a result of testing by the U.K. National Infrastructure Security Co-ordination Centre (NISCC), which has produced an advisory.

Exploitation of the vulnerabilities could be used to crash networking devices or run malicious code, CERT warns.

CERT's advisory contains a fuller list of vendors whose technologies may be affected by the vulnerabilities. Vendors are in the process of releasing patches, which users are urged to review as quickly as possible. As a workaround, sys admins are advised to apply filters to block access to the H.323 services at the network gateway.

This process is complicated because firewalls process H.323 packets and could themselves be vulnerable to attack. For this reason, users might want to disable application layer inspection of H.323 network packets until fixes are available.

CERT warns "protecting your infrastructure against these vulnerabilities may require careful coordination among application, computer, network, and telephony administrators. You may have to make trade-offs between security and functionality until vulnerable products can be updated." ®

Combat fraud and increase customer satisfaction

More from The Register

next story
Parent gabfest Mumsnet hit by SSL bug: My heart bleeds, grins hacker
Natter-board tells middle-class Britain to purée its passwords
Obama allows NSA to exploit 0-days: report
If the spooks say they need it, they get it
Web data BLEEDOUT: Users to feel the pain as Heartbleed bug revealed
Vendors and ISPs have work to do updating firmware - if it's possible to fix this
Samsung Galaxy S5 fingerprint scanner hacked in just 4 DAYS
Sammy's newbie cooked slower than iPhone, also costs more to build
Mounties always get their man: Heartbleed 'hacker', 19, CUFFED
Canadian teen accused of raiding tax computers using OpenSSL bug
Snowden-inspired crypto-email service Lavaboom launches
German service pays tribute to Lavabit
One year on: diplomatic fail as Chinese APT gangs get back to work
Mandiant says past 12 months shows Beijing won't call off its hackers
prev story

Whitepapers

Designing a defence for mobile apps
In this whitepaper learn the various considerations for defending mobile applications; from the mobile application architecture itself to the myriad testing technologies needed to properly assess mobile applications risk.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.