Feeds

Cisco plugs VoIP malware loophole

Quick switch

Protecting users from Firesheep and other Sidejacking attacks with 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. ®

The next step in data security

More from The Register

next story
Israeli spies rebel over mass-snooping on innocent Palestinians
'Disciplinary treatment will be sharp and clear' vow spy-chiefs
Infosec geniuses hack a Canon PRINTER and install DOOM
Internet of Stuff securo-cockups strike yet again
'Speargun' program is fantasy, says cable operator
We just might notice if you cut our cables
Apple Pay is a tidy payday for Apple with 0.15% cut, sources say
Cupertino slurps 15 cents from every $100 purchase
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
Greater dev access to iOS 8 will put us AT RISK from HACKERS
Knocking holes in Apple's walled garden could backfire, says securo-chap
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.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.
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.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.