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 David Maynor
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Profile of David Maynor

News & Commentary Posts: 8
Articles by David Maynor

Zero-Day Pen Testing Under Fire

10/13/2010
A blog post I wrote recently about using zero-day exploits for testing seems to have ruffled some feathers: I got a flood of email about why the concept is immoral, tests like that are not valid, and a host of other problems. Rather than responding to emails individually, this post answers a few common grievances with my testing methodology.

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The Case For Zero-Day Penetration Testing

8/26/2010
Penetration testing is a tightrope act where you balance existing knowledge with a mixture of freshly released- and zero-day knowledge. As a penetration tester, I often hear the argument that zero-day attacks do not belong in a test, that there is no time to prepare for them, so of course the target will be compromised. But I have the exact opposite philosophy: zero-day testing should occur to gauge an organization's response to such an attack. If mitigating controls are in place, an unknown att

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New iPhone SMS Threat No Reason To Panic

7/31/2009
You may have heard that researcher Charlie Miller has released details about a vulnerability that allows an attacker to take over an iPhone remotely with a SMS message. Now everyone is rushing to offer homegrown advice on how to fix the problem. But I'm going to offer a different point of view.

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'Net Parrot Effect

6/30/2009
Iran. You remember the place? Before several celebrities died in the past week, Iran's election aftermath gripped national attention. The more I found out about the election situation, the demonstrations, and the crackdown, the more I felt as if I were reading a political thriller. That's when the ugly side of our hyper-connected society reared its ugly head.

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Java Trouble Brewing For Apple

6/2/2009
Like most computer geeks with the latest toys, I can always find a way to play rather than work. My procrastination tendencies can sometimes lead to troubling results (just ask my girlfriend), so I often give vendors some leeway when it comes to patching vulnerabilities. But some vendors just don't get it.

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ID Theft and Police Scanners

12/30/2008
When asked why he robbed banks, the flamboyant criminal Willie Sutton answered, "Because that's where the money is." That's the perfect example of how the principle of Occam's razor applies to crime: the simplest solution to a problem is often the best one. With the economic downturn, high unemployment rates, and the booming business of identity fraud, would-be criminals are on the lookout for easy methods to get access to personal information. And we stumbled across one such way during a rece

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Hiding In Plain Sight Doesn't Work

12/2/2008
I do a lot of penetration tests and vulnerability assessments for an assortment of business of all sizes. While doing these types of tests, I run into a lot of goofy configurations, strange setups, and wacky ideas that are an attempt by the client to improve security. The most head-scratching setup I constantly run into involves SSH on a port other than the one it is assigned, Port 22.

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COVID-19: Latest Security News & Commentary
Dark Reading Staff 10/30/2020
'Act of War' Clause Could Nix Cyber Insurance Payouts
Robert Lemos, Contributing Writer,  10/29/2020
6 Ways Passwords Fail Basic Security Tests
Curtis Franklin Jr., Senior Editor at Dark Reading,  10/28/2020
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CVE-2020-5425
PUBLISHED: 2020-10-31
Single Sign-On for Vmware Tanzu all versions prior to 1.11.3 ,1.12.x versions prior to 1.12.4 and 1.13.x prior to 1.13.1 are vulnerable to user impersonation attack.If two users are logged in to the SSO operator dashboard at the same time, with the same username, from two different identity provider...
CVE-2020-15703
PUBLISHED: 2020-10-31
There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd read a file as root. Having a symlink in place results in an error message if the file exists, and no error otherwise. This way an unprivile...
CVE-2020-5991
PUBLISHED: 2020-10-30
NVIDIA CUDA Toolkit, all versions prior to 11.1.1, contains a vulnerability in the NVJPEG library in which an out-of-bounds read or write operation may lead to code execution, denial of service, or information disclosure.
CVE-2020-15273
PUBLISHED: 2020-10-30
baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. The issue affects the following components: Edit feed settings, Edit widget area, Sub site new registration, New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can ac...
CVE-2020-15276
PUBLISHED: 2020-10-30
baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. The issue affects the blog comment component. It is fixed in version 4.4.1.