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Tuesday, 07 July 2020 05:48

Immunity's Aitel says F5 BIG-IP bug may have been used in zero-day exploit Featured

Dave Aitel: contrarian view about the established view on the F5 BIG-IP vulnerability. Dave Aitel: contrarian view about the established view on the F5 BIG-IP vulnerability. Courtesy YouTube

Veteran vulnerability researcher Dave Aitel has offered his views on a major flaw in the BIG-IP range of devices, saying that the fact many people had assumed it had never been found and exploited could well be incorrect.

"One thing always funny about people complaining about tweetable bugs like the F5 bug is that they somehow assume that it was never found and used as 0day, so patching 'fast' is a good solution," Aitel tweeted out on Tuesday (AEDT), in a somewhat sarcastic take on the issue.

The bug was widely reported in the American and other tech media on Monday (AEDT).

Over the weekend, F5 issued an advisory urging people to patch what it characterised as a dangerous security flow that it said was extremely likely to be exploited.

The BIG-IP products are networking devices that can be used to shape Web traffic, as load balancers, access gateways, rate limiters or SSL middleware.

It is one of the more popular networking devices in use and is in use by governments globally, by ISPs, in cloud computing data centres and across business networks.

The company claims that 48 out of the top Fortune 50 companies use BIG-IP devices.

Aitel has close connections to the cracker community, having sold zero-days to rustle up cash when he was starting out in business. He founded the firm Immunity, and sold it to Cyxtera Technologies last year. Immunity was set up by Aitel when he was just 24, after spending six years with the NSA.

Immunity has a business model of discovering or buying exploits and then using that knowledge to protect its own customers. The exploits are never revealed to the companies whose software is affected, something that mirrors the practice of the NSA.

Indeed, Aitel is ex-NSA, a fact that he does not publicise much, but one which has earned him great respect in the information security business.

He is also known for taunting people about issues to do with security, especially when the NSA is criticised.

"Blaming people who tell you about the problem is as useful as blaming the COVID-19 tests for creating the disease," Aitel added in another tweet.

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Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.





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