Feeds

Cisco plugs VoIP malware loophole

Quick switch

Protecting against web application threats using SSL

Cisco rushed out a brace of security updates on Thursday to defend against potentially dangerous exploits via its VoIP kit, including the possibility of malicious code being injected into vulnerable networks.

The twin advisories from the network giant cover a range of vulnerabilities in Cisco IP Phones and its Unified Communications Manager (UCM) call management software.

A range of Cisco 7900 Series IP Phones are subject to multiple flaws, some of which may lend themselves to attacks involving the execution of arbitrary code on a vulnerable phone. Malicious DNS responses, a bug on the phone's SSH server and flaws in the handling of MIME on SIP messages all create buffer overflow risks. Other bugs create a means to crash vulnerable phones.

The bugs affect ranges of Cisco Unified IP Phone devices running both SIP firmware and SCCP firmware, as explained here. Cisco's advisory - which contains patching instructions - can be found here.

Exploitation would be tricky but updates are still recommended to guard against possible attack. Workarounds involving disabling potentially vulnerable servicse are possible but troublesome because they would stop remote management of devices, the SANS Institute Internet Storm Centre notes.

Sys admins also need to update their software to either version 5.1(3a) or 6.1(1a), as appropriate, following the discovery of a SQL injection flaw. Left unguarded the vulnerability creates a means for authenticated user to get their hands on sensitive database information, such as user names and password hashes, and call records. Logged-in users may also be able to alter or delete call records. Cisco's advisory can be found here. ®

Reducing the cost and complexity of web vulnerability management

More from The Register

next story
Spies would need SUPER POWERS to tap undersea cables
Why mess with armoured 10kV cables when land-based, and legal, snoop tools are easier?
Early result from Scots indyref vote? NAW, Jimmy - it's a SCAM
Anyone claiming to know before tomorrow is telling porkies
Apple Pay is a tidy payday for Apple with 0.15% cut, sources say
Cupertino slurps 15 cents from every $100 purchase
Israeli spies rebel over mass-snooping on innocent Palestinians
'Disciplinary treatment will be sharp and clear' vow spy-chiefs
YouTube, Amazon and Yahoo! caught in malvertising mess
Cisco says 'Kyle and Stan' attack is spreading through compromised ad networks
Hackers pop Brazil newspaper to root home routers
Step One: try default passwords. Step Two: Repeat Step One until success
China hacked US Army transport orgs TWENTY TIMES in ONE YEAR
FBI et al knew of nine hacks - but didn't tell TRANSCOM
Microsoft to patch ASP.NET mess even if you don't
We know what's good for you, because we made the mess says Redmond
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.