Cisco customers targeted using leaked NSA hacking tools

Networking giant says there isn’t a workaround for the issue

Hackers have targeted some Cisco customers using a new vulnerability found thanks to leaked NSA cyber tools.

The tools were released in August by a hacker group dubbed ShadowBrokers and are confirmed to belong to the Equation Group which has strong ties with the NSA. It is the second such vulnerability to be found by Cisco as a result of the data dump made by the hackers; Cisco has already fixed a flaw in the SNMP implementation in its ASA firewalls.

Cisco has warned its customers that all versions of its IOS, IOS XE and IOS XR software are vulnerable to one of the many exploits released on August 15. The networking firm hasn't revealed which of its customers may have already been breached but the issue impacts firewalls, routers and switches made by the firm, enabling hackers to get hold of critical and confidential information from its customers.

"The vulnerability is due to insufficient condition checks in the part of the code that handles IKEv1 security negotiation requests. An attacker could exploit this vulnerability by sending a crafted IKEv1 packet to an affected device configured to accept IKEv1 security negotiation requests," the firm said in a security advisory blog.

But despite stating that its incident response team was aware of exploitation of the vulnerabilities of those customers running affected platforms, Cisco hasn't yet developed a patch for the flaw and has said no workarounds are available. Instead, it has released IPS signatures and Snort rules to mitigate the risks for its customers.

The exploit is called BENIGNCERTAIN and is made up of three binaries, each of which can be exploited to obtain RSA private key data and VPN configuration details if used against Cisco PIX firewalls.

Cisco isn't the only networking company to have exploits revealed. The ShadowBrokers data dump included exploits for Juniper and Fortinet, amongst others.

French Caldwell, former Gartner fellow and chief evangelist at GRC apps company MetricStream, warned other spy agencies particularly the other Five Eyes members that they too are vulnerable to a similar hack.

"If the NSA was hacked, the chances that they too have been targeted are certainly more than 50-50," he said.

Featured Resources

The complete guide to changing your phone system provider

Optimise your phone system for better business results

Download now

Simplify cluster security at scale

Centralised secrets management across hybrid, multi-cloud environments

Download now

The endpoint as a key element of your security infrastructure

Threats to endpoints in a world of remote working

Download now

2021 state of IT asset management report

The role of IT asset management for maximising technology investments

Download now

Recommended

Hackers demand ransom from therapy patients after clinic data breach
Security

Hackers demand ransom from therapy patients after clinic data breach

27 Oct 2020
Amazon sacks employee over data breach
Security

Amazon sacks employee over data breach

27 Oct 2020
Zoom starts rolling out end-to-end encryption for all users
Security

Zoom starts rolling out end-to-end encryption for all users

27 Oct 2020
Insider data breaches set to increase due to remote work shift
data breaches

Insider data breaches set to increase due to remote work shift

26 Oct 2020

Most Popular

How Liberty navigated a site relaunch during a pandemic
Sponsored

How Liberty navigated a site relaunch during a pandemic

8 Oct 2020
Do smart devices make us less intelligent?
artificial intelligence (AI)

Do smart devices make us less intelligent?

19 Oct 2020
Politicians need to stop talking about technology
Policy & legislation

Politicians need to stop talking about technology

21 Oct 2020