Latest news
Flaws threaten VoIP networks
The flaws affect software and hardware that support the real-time multimedia communications and processing standard, known as the International Telecommunications Union (ITU) H.323 standard.
The security problems can cause a product that supports H.323 to crash. For example, in Cisco telecommunications products running its IOS operating system, the vulnerability could be used to cause the devices to freeze or reboot. However, on Microsoft's Internet Security and Acceleration Server 2000, which is included with Small Business Server 2000 and 2003 editions, the vulnerability could allow an attacker to take control of the system.
Ironically, in Microsoft's case, the Internet Security and Acceleration Server is designed to help protect companies' networks from online attacks. Specifically, a filter used in the server that secures VoIP communications is vulnerable to the flaw.
By Robert Lemos at CNET.
[ Read more ]
Related items
- News: Feds seek wiretap access via VoIP (9 January 2004)
- News: Will VoIP be wiretap-ready? (15 December 2003)
- News: Securing VoIP on the Internet (27 June 2003)
Spotlight
IT security jobs: What's in demand and how to meet it
Posted on 15 May 2013. | Let's say you want a career in information security, where do you start? What credentials do you need? What are employers looking for? Read on to find some answers.
Is Microsoft is reading your Skype communications?
Posted on 15 May 2013. | The question of whether Skype allows U.S. intelligence and law enforcement agencies to access the communications exchanged by its users has still not been adequately answered by Microsoft.
Internet Explorer best at blocking malware
Posted on 14 May 2013. | While Chrome’s malware download protection improved significantly, Internet Explorer 10 continues to outperform the other browsers with a block rate of 99.96%.
Researcher refuses to help Saudi telco to spy on people
Posted on 14 May 2013. | You would think that a Saudi Arabian telecom firm interested in monitoring its users' mobile communications would not be asking a well-known pro-privacy researcher for help, but you would be wrong.
Malicious browser extensions are hijacking Facebook accounts
Posted on 13 May 2013. | Facebook users - especially those in Brazil - are being targeted with malicious browser extensions trying to hijack Facebook profiles, warns Microsoft.
By subscribing to our early morning news update, you will receive a daily digest of the latest security news published on Help Net Security.
With over 500 issues so far, reading our newsletter every Monday morning will keep you up-to-date with security risks out there.
 |
