The 5 Hacking NewsLetter 86
Posted in Newsletter on December 31, 2019
Posted in Newsletter on August 13, 2019
Hey hackers! These are our favorite resources shared by pentesters and bug hunters last week.
This issue covers the week from 02 to 09 of August.
It feels like Hacker Summer Camp (Black Hat, Defcon, BSides Las Vegas…) has dominated the news this week. A huge chunk of new vulnerabilities, tools, slides, and whitepapers published were shared during these events.
So I am not going to share with you all the links because there are way too many. But you can find slides and whitepapers on the Black Hat website. You can start going through that while waiting for the video recordings to come out.
Also here is what I do to find materials on a topic I’m interested in: I check out the talk’s title and author in the presentations schedule or in the workshops page. Then I search for it on Twitter/Google/Github.
For example, I found these using this method:
Also, don’t forget to check out the arsenal section. You won’t necessarily see links to the tools there, but you can find them on Github/Google (e.g. Eyeballer & JSShell).
Exploiting Out Of Band XXE using internal network and php wrappers
A few days ago, @Zombiehelp54 tweeted about having exploited an XXE despite a firewall blocking all outgoing requests including DNS lookups. That was suspenseful! Here is how he did it:
data://didn’t work. But the firewall could be bypassed by using
php://to fetch a resource from a
Note that this is just a summary. Check out the writeup, it’s full of awesome advanced XXE exploitation techniques.
To be honest, I haven’t had the time to properly read this article. But judging from @albinowax’s previous research, I know for sure that it’s good. He earned over $70k bug bounties while doing this research!
The attack is based on a forgotten technique called “HTTP request smuggling”. It can lead to bypassing security controls or accessing unauthorized sensitive data, and can be chained with Web cache poisoning and XSS.
The awesome part is that, since James works at PortSwigger, a Burp extension to scan for Request Smuggling bugs is already available. A new scan check was also added to the Burp scanner. And a new lesson was added to the Web Security Academy (with 12 labs).
Also, he only tested approx 5% of bug bounty sites, so there’s still room for us mortals to play with this bug.
This is a cool podcast episode if you’re looking for something to pass the time while commuting, walking or exercising.
It’s not technical at all, it’s more in the entertainment category. But it’s nice getting to know the mysterious @PwnFunction. Also I love the trivia quizz, wish it was longer!
GitHub Recon and Sensitive Data Exposure, Advanced Burp Suite, Recon & Discovery, XML External Entity Injection & Server Side Forgery Request
Wow, that’s a lot to watch! My hacker watchlist keeps alarmingly growing these days.
Bugcrowd University just dropped 5 new videos on recon, Github, Burp, XXE and SSRF. They look really interesting. And judging from their length, there is probably something new to learn here for everyone.
See more writeups on The list of bug bounty writeups.
We created a collection of our favorite pentest & bug bounty related tweets shared this past week. You’re welcome to read them directly on Twitter: Tweets from 08/02/2019 to 08/09/2019
Have a nice week folks!
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