Feeds

Cisco patches serious holes in voice-enabled offerings

Four updates in all

5 things you didn’t know about cloud backup

Cisco issued four updates that patch a raft of security holes in products running its Internetwork Operating System (IOS). Impacts included sustained denial of service attacks, data leakage and remote execution of code.

The most serious vulnerabilities reside in voice-enabled devices and Cisco Unified Communications Manager, which can allow an attacker to remotely execute malicious code. There are no workarounds for the flaws, which pertain to services such as Session Initiation Protocol, Media Gateway Control Protocol, Signaling protocols H.323, H.254, Real-time Transport Protocol and Facsimile reception.

"This one is bad, as in real bad," Johannes Ullrich, CTO for SANS Internet Storm Center, told The Reg. "I would probably expedite the testing process for that. "The other vulnerabilities, you want to be really careful about testing them and they don't seem to be overly critical."

Vulnerable IOS versions include various flavors of 12.3(4), 12.3(7), 12.3(8), 12.4 Mainline and 12.4T onward. Routers that are configured as SIP Public Switched Telephone Network Gateways and SIP Session Border Controllers are also vulnerable, as is the CAT6000-CMM card.

Other updates addressed a data leakage flaw when using IPv6 routing headers and a weakness in the IOS Next Hop Resolution Protocol that can result in a restart of the device or possible remote code execution.

A fourth patch plugs a hole in some 12.2-based IOS releases when configured to offer Secure Copy server functionality. Those vulnerabilities allow valid users, regardless of privilege level, to transfer files to and from an IOS device. To exploit it, an attacker would have to have access to port 22, which typically is open only on management interfaces.

Nonetheless, Immunity, a company that provides penetration testing tools, plans to add modules to its products that test for the vulnerability, said Kostya Kortchinsky, a senior researcher at the company.

"Anybody can exploit this without any skill in Cisco exploitation," he explained. "It doesn't need any overflow of any kind."

The patches were released the same day Cisco's website was inaccessible for about three hours. A spokeswoman later said the outage was the result of an accident during maintenance that cut off power to a San Jose data center. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
One HUNDRED FAMOUS LADIES exposed NUDE online
Celebrity women victimised as Apple iCloud accounts reportedly popped
Rubbish WPS config sees WiFi router keys popped in seconds
Another day, another way in to your home router
Goog says patch⁵⁰ your Chrome
64-bit browser loads cat vids FIFTEEN PERCENT faster!
NZ Justice Minister scalped as hacker leaks emails
Grab your popcorn: Subterfuge and slur disrupts election run up
NIST to sysadmins: clean up your SSH mess
Too many keys, too badly managed
Scratched PC-dispatch patch patched, hatched in batch rematch
Windows security update fixed after triggering blue screens (and screams) of death
Researchers camouflage haxxor traps with fake application traffic
Honeypots sweetened to resemble actual workloads, complete with 'secure' logins
Attack flogged through shiny-clicky social media buttons
66,000 users popped by malicious Flash fudging add-on
New Snowden leak: How NSA shared 850-billion-plus metadata records
'Federated search' spaffed info all over Five Eyes chums
prev story

Whitepapers

Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
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.
Advanced data protection for your virtualized environments
Find a natural fit for optimizing protection for the often resource-constrained data protection process found in virtual environments.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.