Ctf-Screenshotter - A CTF Web Challenge About Making Screenshots

A CTF web challenge about making screenshots. It is inspired by a bug found in real life. The challenge was created by @LiveOverflow for https://cscg.de/. Watch the video writeup here: https://www.youtube.com/watch?v=FCjMoPpOPYI Run the challenge To run the challenge you have to install...

Announcing the Launch of the Azure SSRF Security Research Challenge

Microsoft is excited to announce the launch of a new, three-month security research challenge under the Azure Security Lab initiative. The Azure Server-Side Request Forgery SSRF Research Challenge invites security researchers to discover and share high impact SSRF vulnerabilities in Microsoft...

Announcing the Eighth Annual Flare-On Challenge

The FLARE team is once again hosting its annual Flare-On challenge, now in its eighth year. Take this opportunity to enjoy some extreme social distancing by solving fun puzzles to test your mettle and learn new tricks on your path to reverse engineering excellence. The contest will begin at 8:00...

Twitter Algorithmic Bias: Underrepresentation Bias through Twitter's Cropping Algorithm #2: Favoring Animals over Black People

Bounty Hunter Name: CyberQueenMeg About You: Megan, also known as CyberQueenMeg, is a passionate rising cybersecurity professional who is interested in programming, cybersecurity, and web development. Megan is a high school senior in a rigorous computer science program at her high school where sh...

Twitter Algorithmic Bias: Underrepresentation Bias through Twitter's Cropping Algorithm

Bounty Hunter Name: CyberQueenMeg About You: Megan, also known as CyberQueenMeg, is a passionate rising cybersecurity professional who is interested in programming, cybersecurity, and web development. Megan is a high school senior in a rigorous computer science program at her high school where sh...

OESA-2021-1283 krb5 security update

Security Fixes: In MIT krb5 releases 1.16 and later, an unauthenticated attacker can cause a null dereference in the KDC by sending a request containing a PA-ENCRYPTED-CHALLENGE padata element without using FAST.CVE-2021-36222...

Exploit for CVE-2020-1472

PoC exploit for CVE-2020-1472 ZeroLogon vulnerability. The target product/service is Windows Domain Controller DC. The vulnerability class/vector is authentication bypass via all-zero challenge. The probable entry point is the Netlogon service, which is accessed via the Impacket library. Notable...

Improper Authentication

Overview The Utils.readChallengeTx function used in SEP-10 Stellar Web Authentication states in its function documentation that it reads and validates the challenge transaction including verifying that the serverAccountID has signed the transaction. The function does not verify that the server ha...

GHSA-6CGH-HJPW-Q3GQ Utils.readChallengeTx does not verify the server account signature

The Utils.readChallengeTx function used in SEP-10 Stellar Web Authentication states in its function documentation that it reads and validates the challenge transaction including verifying that the serverAccountID has signed the transaction. The function does not verify that the server has signed...

Utils.readChallengeTx does not verify the server account signature

The Utils.readChallengeTx function used in SEP-10 Stellar Web Authentication states in its function documentation that it reads and validates the challenge transaction including verifying that the serverAccountID has signed the transaction. The function does not verify that the server has signed...

js-stellar-sdk data manipulation vulnerability

js-stellar-sdk is an application. A Javascript library for communicating with the Stellar Horizon server. A security vulnerability exists in Js-stellar-sdk versions prior to 8.2.3, which stems from the program's "Utils.readChallengeTx" function not verifying that the server has signed the...

Prototype Pollution in robinvdvleuten/shvl

✍️ Description Hi, I've seen a recent prototype pollution report to this library and, during the code review, found out that the applied fix doesn't work at all. The problem relies in the regex used to fix, as I shown bellow. 🕵️‍♂️ Proof of Concept The reported prototype pollution resulted in the...

How Akamai Employees Showed Up for Akamai Earth Month

Photo from an Akamai employee who took her bike out to enjoy nature during Akamai Earth Month. Akamai employees across the globe showed up in full force for Akamai Earth Month 2021 -- our campaign to help employees take small actions at home and in their community to make a difference for the...

CISO Challenge: Check Your Cybersecurity Skills On This New Competition Site

InfoSec leaders tend to be a specific type. Their jobs require them to think of possible threats, take actions that may not pay immediate results, plan for unknown security risks, and react quickly when emergencies arise, often before the morning's first coffee. The high-stakes position also mean...

Insecure Cryptographic Functions

bareos is uses Insecure Cryptographic Functions. The An attacker is able to replay the Bareos director's cram-md5 challenge to the director itself leading to the director responding to the replayed challenge...

OverRide - Binary Exploitation And Reverse-Engineering (From Assembly Into C)

Explore disassembly, binary exploitation & reverse-engineering through 10 little challenges. In the folder for each level you will find: flag - password for next level README.md - how to find password source.c - the reverse engineered binary dissasemblynotes.md - notes on asm See the subject...

OTRS 6.0.1 - Remote Command Execution Exploit (2)

Exploit Title: OTRS 6.0.1 - Remote Command Execution 2 Exploit Author: Hex26 Vendor Homepage: https://www.otrs.com/ Software Link: http://ftp.otrs.org/pub/otrs/ Version: 4.0.1 - 4.0.26, 5.0.0 - 5.0.24, 6.0.0 - 6.0.1 Tested on: OTRS 5.0.2/CentOS 7.2.1511 CVE : CVE-2017-16921 !/usr/bin/env python3...

How to enable Facebook’s hardware key authentication for iOS and Android

Since 2017 desktop users have had the opportunity to use physical security keys to log in to their Facebook accounts. Now iOS and Android users have the same option too. Physical security keys are a more secure option for two-factor authentication 2FA than SMS which is vulnerable to SIM swap...

MyBB 未授权RCE漏洞（CVE-2021-27889 CVE-2021-27890）

MyBB Remote Code Execution Chain BY SIMON SCANNELL & CARL SMITH Today SonarSource is pleased to share with you a guest contribution to our Code Security blog series. The following blog post is authored by Simon Scannell and Carl Smith -two independent security researchers- joining us in sharing...

“Hacker Games” launched to challenge and improve cybersecurity skills

By Habiba Rashid Launched by Veracode; Hacker Games will last for 2 weeks March 15-26, 2021. This is a post from HackRead.com Read the original post: “Hacker Games” launched to challenge and improve cybersecurity skills...