Feeds

Cisco plugs VoIP malware loophole

Quick switch

Build a business case: developing custom apps

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. ®

Endpoint data privacy in the cloud is easier than you think

More from The Register

next story
14 antivirus apps found to have security problems
Vendors just don't care, says researcher, after finding basic boo-boos in security software
'Things' on the Internet-of-things have 25 vulnerabilities apiece
Leaking sprinklers, overheated thermostats and picked locks all online
iWallet: No BONKING PLEASE, we're Apple
BLE-ding iPhones, not NFC bonkers, will drive trend - marketeers
Multipath TCP speeds up the internet so much that security breaks
Black Hat research says proposed protocol will bork network probes, flummox firewalls
Only '3% of web servers in top corps' fully fixed after Heartbleed snafu
Just slapping a patched OpenSSL on a machine ain't going to cut it, we're told
Microsoft's Euro cloud darkens: US FEDS can dig into foreign servers
They're not emails, they're business records, says court
Plug and PREY: Hackers reprogram USB drives to silently infect PCs
BadUSB instructs gadget chips to inject key-presses, redirect net traffic and more
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
prev story

Whitepapers

7 Elements of Radically Simple OS Migration
Avoid the typical headaches of OS migration during your next project by learning about 7 elements of radically simple OS migration.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Solving today's distributed Big Data backup challenges
Enable IT efficiency and allow a firm to access and reuse corporate information for competitive advantage, ultimately changing business outcomes.
A new approach to endpoint data protection
What is the best way to ensure comprehensive visibility, management, and control of information on both company-owned and employee-owned devices?