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ZERO DAILY

Hacking, AppSec, and Bug Bounty newsletter

2019-08-13 | Taviso goes down the rabbit hole, Orange’s Pre-auth RCE on Twitter VPN, and Web cache poisoning by albinowax

Tuesday, August 13, 2019

Took a bit of a break for security summer camp, back at it this week for a jam-packed Zero Daily for ya.

TOP STORY

From @taviso: I’m publishing some research today, a major design flaw in Windows that's existed for almost *two decades*. I wrote a blog post on the story of the discovery all the way through to exploitation. Repo of code and tools used.

HACKTIVITY HIGHLIGHTS

Potential pre-auth RCE on Twitter VPN [288 upvotes] - $20,160 bounty for this report by Twitter by @Orange.
SQL Injection Extracts Starbucks Enterprise Accounting, Financial, Payroll Database [263 upvotes] - $4,000 bounty for this report to Starbucks by @spaceracoon
Stored XSS on [redacted] and Bypass for #488147 enables stored XSS on [redacted] again. About $40K in bounties for two reports to PayPal by @albinowax around web cache poisoning attack. See his full writeup on the Portswigger blog.

OTHER ARTICLES WE’RE READING

Apple getting a bit chummier with security researchers with the iOS security research device program, giving dev devices to top hackers in their bug bounty program. About time.
MSFT upping bug bounty awards and launched Azure Security Lab
Filedescriptor and EdOverflow published a blog in PagedOut about bug hunting (see page 52)
Owning the clout through SSRF and PDF generators - slides from @nahamsec and @daeken’s DEF CON talk. See also, the automatic HTTP+DNS rebinding attack tool referenced in the talk.
HackerOne’s h1-702 live hacking event concluded on Sunday morning, having paid out hackers $1.9M over 3 days. What a ride.

ABOUT ZERO DAILY

Zero Daily is a daily newsletter that highlights application security, bug bounty, and hacker focused topics. The content is curated with love by @luketucker and brought to you by HackerOne.

Friends don’t keep good things to themselves - forward this to your homies and co-workers. BTW, want to see who runs bug bounties?

Have a news tip / story to highlight? We’d love to hear about it. Email: zerodaily@hackerone.com

Hi, we have cracked the admin hash and got the root shell. This is definitely a Pre-auth RCE on your SSL VPN server

Orange Tsai

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