ImageSharp: Tiled fax TIFF: tile buffer sized by TileWidth but fax decompressor writes scanlines of ImageWidth — heap OOB write

Summary When decoding a tiled TIFF with fax compression T4/T6/MH, DecodeTilesChunky allocates each tile buffer from TileWidth ceilTileWidthbpp/8TileLength bytes but constructs the fax decompressor with frame.Width: TiffDecompressorsFactory ignores the isTiled/tileWidth/tileHeight parameters...

ImageSharp: CCITT fax decompression (T4/Modified Huffman): unbounded WriteBits overflows strip buffer — heap OOB write in SixLabors.ImageSharp

Summary When decoding a fax-compressed strip TIFF Compression=3 / Group 3 1D, or Compression=2 / Modified Huffman, the CCITT decompressors write decoded runs through BitWriterUtils.WriteBits/WriteBit/WriteZeroBit, which advance and write bits via Unsafe.Add with read-modify-write semantics —...

gv_decryptor

Gallery Vault Decryptor Recovery tool for assets encrypted by the Gallery Vault ThinkYeah Android application. It supports the V2 container layout documented below and does not require the Gallery Vault PIN. Only recover data that you own or are authorized to examine. Requirements Python 3.10 or...

yawkat LZ4 Java: LZ4BlockInputStream allocates an unvalidated compressed length from the stream header

Summary LZ4BlockInputStream grows its compressed-input buffer to the attacker-controlled compressedLen value from the legacy LZ4Block stream header before reading any payload bytes. A header-only input can therefore trigger a near-2 GiB allocation and exhaust the JVM heap. Details In...

yawkat LZ4 Java: LZ4DecompressorWithLength allocates the unvalidated size from the 4-byte length header, so a 5-byte input triggers a 1 GiB allocation and OutOfMemoryError

Summary LZ4DecompressorWithLength.decompressbyte, int allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says 0x40000000 makes the JVM commit a gigabyte and can cause heap exhaustion. Details...

enject

enject Hide .env secrets from prAIng eyes. Note: this project was previously called enveil and has been renamed to enject AI coding tools like Claude Code, Copilot, Cursor, and others can read files in your project directory, which means a plaintext .env file is an accidental secret dump waiting ...

AV-Chaos-Monkey

AV Chaos Monkey Distributed chaos engineering platform for load testing video conferencing systems. Simulates 1500+ WebRTC participants with H.264/Opus streams and injects network chaos spikes to validate system resilience under degraded conditions Architecture 1. Media Processing Pipeline : FFmp...

Quasar Framework: Super-linear regex backtracking on User-Agent lets one request stall a Quasar SSR server

Summary One unauthenticated request with a crafted User-Agent stalls a Quasar SSR server for seconds. Quasar auto-installs its Platform plugin on every server-side render, and Platform.parseSSR feeds the raw, unbounded User-Agent request header into a chain of backtracking regular expressions in...

flawfinder

About This is "flawfinder" by David A. Wheeler. Flawfinder is a simple program that scans C/C++ source code and reports potential security flaws. It can be a useful tool for examining software for vulnerabilities, and it can also serve as a simple introduction to static source code analysis tools...

micr0_shell

micr0 shell Micr0shell is a lightweight and efficient Python script designed for dynamically generating Windows X64 Position-Independent Code PIC Null-Free reverse shell shellcode. Depending on the options selected, the generated shellcode can be up to 27 bytes smaller than comparable shellcode...

vuke

vuke Research tool for analyzing and reproducing vulnerable Bitcoin key generation. Features Modular architecture - pluggable sources and transforms Multiple input sources Numeric ranges test weak seeds Wordlists brainwallet analysis Timestamps time-based PRNG exploitation Stdin streaming pipelin...

BPFDoor-controller-source

BPFDoor-controller-source Source code to recent BPFDoor's controller variant Original: 2eacc8d91b9829b9606a7945fc5311fb5876cfb42ffccc1b91f61841237b04c1 Fixed: bpfdoorcontroller.c Original to fixed helper: formatfix.py Compile: $ apt install libssl-dev $ gcc -Wno-implicit-function-declaration...

Burp-Encode-IP

About This extension will encode an IP address into a bunch of less known encoding techniques. This technique is focused on testing vulnerabilities such as SSRF Server-Side Request Forgery, Open Redirect or RFI Remote File Inclusion. TL;DR Easy Install If you have Burp Pro it is possible to insta...

vxlang-page

VxLang Contents Docs What is VxLang? Supported File Formats Preview Virtualization Preview Dual-Mode Preview Obfuscation Preview Code-Flattening Preview Tutorial Usage & Guide-Code Precautions How to get the full version Donate and Subscription Patreon Link Event 2026 June Event Extension-Codes a...

CTFs

CTFs Writeups / Files for some of the Cyber CTFs that I've done I've also included a list of CTF resources as well as a comprehensive cheat sheet covering tons of common CTF challenges !NOTE There is now a web mirror of this repo at hackback.zip Table of Contents Resources YouTube Channels Practi...

sign-saboteur

SignSaboteur SignSaboteur is a Burp Suite extension for editing, signing, verifying, and attacking signed tokens. It supports different types of tokens: Django TimestampSigner, ItsDangerous Signer, Express cookie-session middleware, OAuth2 Proxy, Tornado’s signed cookies, Ruby Rails Signed cookie...

page_inject

pageinject - AFALG aead cross-container escape AFALG aead vulnerability cross-container exploit -- pivot from one compromised container into every sibling container that shares the samelibc.so.6 image layer. This is an escape primitive : it runs from inside an unprivileged container that the...

SSE4-CVE-2022-22965

Spring Boot CVE-2022-22965 Docker PoC for CVE-2022-22965 with Spring Boot version 2.6.5 Getting Started 1. Run docker compose up --build to build and start the vulnerable application. 2. Run curl -H "Accept: text/html;"...

cve-2019-6250-lab

CVE-2019-6250 — libzmq pre-auth RCE lab End-to-end working RCE chain + reproducible lab for CVE-2019-6250 , the pre-auth heap-buffer-overflow in libzmq's v2decodert::sizeready. A uint64t pointer-arithmetic overflow lets an unauthenticated peer overwrite the adjacent msgt::contentt::ffn function...

CVE-2018-4416-exploit

Preface :PROPERTIES: :CUSTOMID: preface :END: OKay, binary security is not only /heap/ and /stack/, we still have a lot to discover despite regular CTF challenge. Browser, Virtual Machine, and Kernel all play an important role in binary security. And I decide to study browser first. I choose a...