HTTP Request Smuggling: Invalid whitespace characters in headers in Waitress

Impact If a proxy server is used in front of waitress, an invalid request may be sent by an attacker that bypasses the front-end and is parsed differently by waitress leading to a potential for HTTP request smuggling. Content-Length: 10 Transfer-Encoding: \x0bchunked For clarity: 0x0b == vertical...

Quark-Engine - An Obfuscation-Neglect Android Malware Scoring System

An Obfuscation-Neglect Android Malware Scoring System Concepts Android malware analysis engine is not a new story. Every antivirus company has their own secrets to build it. With curiosity, we develop a malware scoring system from the perspective of Taiwan Criminal Law in an easy but solid way. W...

HTTP Request Smuggling: Content-Length Sent Twice in Waitress

Impact Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. So a request with: Content-Length: 10 Content-Length: 10 would get transformed to: Content-Length: 10, 10 Whic...

GHSA-4PPP-GPCR-7QF6 HTTP Request Smuggling: Content-Length Sent Twice in Waitress

Impact Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. So a request with: Content-Length: 10 Content-Length: 10 would get transformed to: Content-Length: 10, 10 Whic...

HTTP Request Smuggling: Invalid Transfer-Encoding in Waitress

Impact Waitress would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with the inner-most...

GHSA-G2XC-35JW-C63P HTTP Request Smuggling: Invalid Transfer-Encoding in Waitress

Impact Waitress would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with the inner-most...

GHSA-PG36-WPM5-G57P HTTP Request Smuggling: LF vs CRLF handling in Waitress

Impact Waitress implemented a "MAY" part of the RFC7230 https://tools.ietf.org/html/rfc7230section-3.5 which states: Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR...

HTTP Request Smuggling: LF vs CRLF handling in Waitress

Impact Waitress implemented a "MAY" part of the RFC7230 https://tools.ietf.org/html/rfc7230section-3.5 which states: Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR...

PT-2019-6231 · Waitress +3 · Waitress +3

Name of the Vulnerable Software and Affected Versions: Waitress versions 1.3.1 and earlier Description: The issue arises from Waitress implementing a "MAY" part of the RFC7230, which allows recognizing a single LF as a line terminator and ignoring any preceding CR. This can lead to a potential fo...

Pbtk - A Toolset For Reverse Engineering And Fuzzing Protobuf-based Apps

Protobuf is a serialization format developed by Google and used in an increasing number of Android, web, desktop and more applications. It consists of a language for declaring data structures , which is then compiled to code or another kind of structure depending on the target implementation. pbt...

Linux/x64 - Reverse TCP Stager Shellcode (188 bytes)

; Title: Linux/x64 - Reverse TCP Stager Shellcode 188 bytes ; Author: Lee Mazzoleni ; Tested on: Ubuntu 18.04.2 LTS ; reverse tcp stager - download and execute up to 4096 bytes of additional payload - no null bytes in this ; this code is 188 bytes total less if you delete the exit syscall at the...

Ngrev - Tool For Reverse Engineering Of Angular Applications

Graphical tool for reverse engineering of Angular projects. It allows you to navigate in the structure of your application and observe the relationship between the different modules, providers, and directives. The tool performs static code analysis which means that you don't have to run your...

Linux Bug Opens Most VPNs to Hijacking

A vulnerability in most Linux distros has been uncovered that allows a network-adjacent attacker to hijack VPN connections and inject rogue data into the secure tunnels that victims are using to communicate with remote servers. According to researchers at University of New Mexico and Breakpointin...

New Linux Bug Lets Attackers Hijack Encrypted VPN Connections

A team of cybersecurity researchers has disclosed a new severe vulnerability affecting most Linux and Unix-like operating systems, including FreeBSD, OpenBSD, macOS, iOS, and Android, that could allow remote 'network adjacent attackers' to spy on and tamper with encrypted VPN connections. The...

Hacking Hardware Password Managers: Royal Vault Password Keeper

TL;DR: Taking three hardware password managers I used them to: Learn the basics of hardware hacking Practice disassembling Perform chipset research Understand pinouts and protocols Read data off each device The royal password vault boards looked to be reused from a previous hardware device with...

A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack

Keepalive thread overload/DoS Impact A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the...

[SECURITY] Fedora 31 Update: haproxy-2.0.10-1.fc31

HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments. Indeed, it can: - route HTTP requests depending on statically assigned cookies - spread load among several servers while assuring server persistence through the use of HTTP cookies - switch to...

[SECURITY] Fedora 30 Update: haproxy-1.8.23-1.fc30

HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments. Indeed, it can: - route HTTP requests depending on statically assigned cookies - spread load among several servers while assuring server persistence through the use of HTTP cookies - switch to...

PT-2019-5065

Name of the Vulnerable Software and Affected Versions Linux affected versions not specified FreeBSD affected versions not specified OpenBSD affected versions not specified MacOS affected versions not specified iOS affected versions not specified Android affected versions not specified Description...

PT-2019-14826

Name of the Vulnerable Software and Affected Versions Puma versions prior to 3.12.2 Puma versions prior to 4.3.1 Description A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened th...