This one could open company routers to a denial-of-service attack.
Just hours after the Department of Homeland Security's cybersecurity division warned of a potentially serious networking-software flaw, Cisco Systems has followed up with a warning of its own, about a flaw that could place corporate routers and switches at risk of a denial-of-service attack.
According to Cisco's security advisory, the flaw is remotely exploitable and, "successful exploitation of this vulnerability results in a reload of the device. Repeated exploitation could result in a sustained DoS attack."
The Cisco vulnerability is unrelated to the transmission control protocol or border gateway protocol vulnerabilities reported here.
The flaw affects versions 12 through 12.3 of Cisco's Internetwork Operating System. A complete list of affected routers and switches as well as updated remediation information is available here.
The flaw lies in the way Cisco's operating system handles certain simple network management protocol, or SNMP, requests.
2014 Next-Gen WAN SurveyWhile 68% say demand for WAN bandwidth will increase, just 15% are in the process of bringing new services or more capacity online now. For 26%, cost is the problem. Enter vendors from Aryaka to Cisco to Pertino, all looking to use cloud to transform how IT delivers wide-area connectivity.
The UC Infrastructure TrapWorries about subpar networks tanking unified communications programs could be valid: Thirty-one percent of respondents have rolled capabilities out to less than 10% of users vs. 21% delivering UC to 76% or more. Is low uptake a result of strained infrastructures delivering poor performance?