Application Security this week for October 21

The "Man that was a hell of a flu bug" edition. Stay healthy, everyone.


SSH bypass by ... wait for it ... telling the server your request is granted.  These are not the vulnerabilities you are looking for.  They can go on their way.


PHP 5.6 support is ending.  That's a whole lot of websites.


RCE in URL handling in Edge.  Positive security model, people.


Oracle released 300 patches, most of them critical or high.  Not sure if this is good or bad.


jQuery File Upload has a serious bug that has been being exploited for three years.  Go update those old applications.


Here's a new SSL testing contender.  I haven't tried it yet but I will tomorrow.  Let me know what you think if you use it.


And that's the news.

Application Security This Week for October 7

Authentication bypass vulnerability in Western Digital My Cloud allows escalation to admin privileges.  Obscure finding, but neat bug.


EIGHTY FIVE findings in latest Adobe Reader patch.


It looks like we might be getting a foothold on the war against malware.


And that's the news!

Application Security This Week for September 30

The "Wow, it's been a busy month" edition.


Apple took "Adware Doctor" out of the store because it was stealing data.  How did no one notice this?


There is a new search engine for researching exploits.


Google open sourced their file upload protection tool.


A cheat sheet for Angular web security.


SharpSploit: a C# post-exploitation library.



Application Security This Week for September 9

MWR Labs describes use of HTTP Referer headers to execute DNS rebinding attacks on AWS-hosted analytics systems


Malicious PowerShell Compiling C# Code on the Fly


Interesting bug in Chromium


Holy crap there are a lot of Cisco security patches this month.

Application Security This Week for September 2

Mazen Ahmed write an exploit for the new Struts CVE.


Speaking of the CVE program, and MITRE in general, Steve Ragan got a solid scoop on congress planning a revamp.


Secure Ideas started a blog seried on CORS, CSRF, and Clickjacking which is off to a good start


The Fortnite Android app is vulnerable to a really very unique flaw, Man-on-the-disk.


Speaking of weird flaws, people have started registering skills on Alexa with phonetically similar names as common commands. It's called Skill Squatting.


And that's the news!

Application Security This Week for August 26

Big, big news out of Portswigger this week.  I'm a huge fan of OWASP ZAP, and use it daily, but this is a major uptick in web analysis tools.

A new API for Burp Suite (something ZAP has had for years)

The introduction of 2.0

And finally the introduction of Enterprise Edition, which effectively adds scalibility

Really solid week of announcements.


In other news, AppSec consulting hits it out of the park again with advice on securing third-party JavaScript.


A major flaw was found in GhostScript.  If you are parsing document formats like PDF or XPS, get your patch on!


Another Struts RCE vulnerability.  "I'm shocked!" said nobody, ever.


Bitdefender published a whitepaper on the next phase of Android malware, and it is worth a read.


And that's the news!

Application Security this Week for August 19

Trend Micro found a really interesting use-after-free vulnerability in the VBScript engine in IE.  Now, before you giggle, think of all of the companies that have standardized on IE. They are out there. Either way, the finding is cool.


Username enumeration bug discovered in OpenSSH of all things.


Ever seen a scanner point out that a site is vulnerable to DNS Rebinding, and wonder what the heck it was talking about?  Yeah me too.  These folks wrote up a framework for it.


Here is a password list sorted by probability. Remember that training course when I said you should check your new passwords against a list of known bad values, because NIST said to? Here ya go. The esteemed Jim Fenton recommends checking against the first 100,000. Neat project.

Application Security This Week for August 12

Interesting idea - introducing bugs to make software more difficult to attackers to navigate.  Seems risky to me; I would rather see self-reporting software.


Cloudflare has a really really good writeup on TLS 1.3.


Questionably ethical hacker steals credentials from the Homebrew repo and makes a commit.


Viral tweet thread on the "voatz" software that WVa is planning on using for midterm elections. Vulnerabilityapalooza.


Portswigger posted a nice primer on cache poisoning.

Application Security Weekly for August 5

Reddit Breach Highlights Limits of SMS-Based Authentication


One of my favorite people - Adam Caudill with AppSec Consulting - gives a breakdown of changes to the way Chrome handles HTTPS


Information disclosure is a thing - stop using Trello as a password manager


One of my favorite companies (Duo) has been acquired by Cisco

I have been assured that everything is gonna be OK 


As nosqlmap has fallen a bit by the wayside, I'm glad to see a new NoSQL scanner show up

Application Security This Week for July 29

Venmo, a social payment system, defaults to public disclosure of payments made on the system.


Scott Simmons has some terriffic advice about using Same-Origin policy as a control for CSRF.


Open redirect flaw in Electron exploites in the new Google Hangouts Chat application.


F5 has released their annual Application Protection report.  Worth a read.


DOMpurify, a common control for DOM based XSS, has a vulnerability - update if you are using it (you probably are).

Bill Sempf

Husband. Father. Pentester. Secure software composer. Brewer. Lockpicker. Ninja. Insurrectionist. Lumberjack. All words that have been used to describe me recently. I help people write more secure software.



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