Reverse Shell Cheat Sheet

If you’re lucky enough to find a command execution vulnerability during a penetration test, pretty soon afterwards you’ll probably want an interactive shell. If it’s not possible to add a new account / SSH key / .rhosts file and just log in, your next step is likely to be either trowing back a...

RCE in PHP or how to bypass disable_functions in PHP installations

Today we will explore an exciting method to remotely execute code even if an administrator set disablefunctions in the PHP configuration file. It works at most popular UNIX-like systems. CVE-2018–19518 was assigned to the vulnerability was found by a man with the @crlf nickname. Let’s see details...

Shining a Light on a New Technique for Stealth Persistence

Red teamers like myself and my team are driven by a desire to out-innovate the bad guys – to help the good guys. We study their methods, strive to think like they do, work to better understand attacker techniques and test our mettle against the spectrum of technologies in use today to find new wa...

Security Bulletin: TADDM – Security improvement: More restricted permission on TADDM files on UNIX-like servers.

Summary TADDM security improvement deployed started from TADDM 7.2.1.5 and in TADDM 7.2.2 that restrict access to TADDM files on UNIX-like servers. Vulnerability Details CVE-2013-4040 Description Default TADDM file permission on UNIX-like servers, by default are 755 rwx r-x r-x, that allow all...

Exim SMTP listener base64d function one-character buffer overflow

Added: 05/16/2018 CVE: CVE-2018-6789 BID: 103049 Background Exim is a mail transfer agent used on Unix-like operating systems. Problem Exim 5.90 and earlier are vulnerable to a one-character buffer overflow in the base64d function in the SMTP listener. Resolution Upgrade to Exim 4.90.1 or higher,...

Exim SMTP listener base64d function one-character buffer overflow

Added: 05/16/2018 CVE: CVE-2018-6789 BID: 103049 Background Exim is a mail transfer agent used on Unix-like operating systems. Problem Exim 5.90 and earlier are vulnerable to a one-character buffer overflow in the base64d function in the SMTP listener. Resolution Upgrade to Exim 4.90.1 or higher,...

hBlock - Improve Your Security And Privacy By Blocking Ads, Tracking And Malware Domains

Improve your security and privacy by blocking ads, tracking and malware domains. What is this for? This POSIX-compliant shell script, designed for Unix-like systems, gets a list of domains that serve ads, tracking scripts and malware from multiple reputable sources and creates a hosts file that...

Nemesis - A Command-Line Network Packet Crafting And Injection Utility

The Nemesis Project is designed to be a command line based, portable human IP stack for UNIX-like and Windows systems. The suite is broken down by protocol, and should allow for useful scripting of injected packets from simple shell scripts. Key Features ARP/RARP, DNS, ETHERNET, ICMP, IGMP, IP,...

Command-line Network Packet Crafting and Injection Utility: nemesis

The Nemesis Project is designed to be a command line based, portable human IP stack for UNIX-like and Windows systems. The suite is broken down by protocol, and should allow for useful scripting of injected packets from simple shell scripts. Key Features ARP/RARP, DNS, ETHERNET, ICMP, IGMP, IP,...

Block All Domains That Serve Ads, Tracking Scripts and Malware: hBlock

Improve your security and privacy by blocking ads, tracking and malware domains. This POSIX-compliant shell script, designed for Unix-like systems, gets a list of domains that serve ads, tracking scripts and malware from multiple reputable sources and creates a hosts file that prevents your syste...

Important Photon OS Security Update - PHSA-2018-0105

Updates of 'linux', 'linux-esx' packages of Photon OS have been released...

Supervisor: command injection vulnerability

Background Supervisor is a client/server system that allows its users to monitor and control a number of processes on UNIX-like operating systems. Description A vulnerability in Supervisor was discovered in which an authenticated client could send malicious XML-RPC requests and supervidord will r...

Nili - Tool for Network Scan, Man in the Middle, Protocol Reverse Engineering and Fuzzing

Nili is a Tool for Network Scan, Man in the Middle, Protocol Reverse Engineering and Fuzzing. Prerequisites Python - Python Programming Language Scapy - Interactive Packet Manipulation Program Netzob - Protocol Reverse Engineering, Modeling and Fuzzing Installing Here is some Instructions for...

[SECURITY] Fedora 25 Update: supervisor-3.2.4-1.fc25

The supervisor is a client/server system that allows its users to control a number of processes on UNIX-like operating systems...

[SECURITY] Fedora 26 Update: supervisor-3.3.3-1.fc26

The supervisor is a client/server system that allows its users to control a number of processes on UNIX-like operating systems...

[SECURITY] Fedora 25 Update: libtool-2.4.6-14.fc25

GNU Libtool is a set of shell scripts which automatically configure UNIX and UNIX-like systems to generically build shared libraries. Libtool provides a consistent, portable interface which simplifies the process of using shared libraries. If you are developing programs which will use shared...

Supervisor Remote Command Execution Vulnerability

Supervisor is a client/server system developed in Python that manages and monitors processes on UNIX-like operating systems. It can start and shut down multiple processes at the same time. A remote command execution vulnerability exists in Supervisor. It allows a remote user to execute arbitrary...

PRET - Printer Exploitation Toolkit

PRET is a new tool for printer security testing developed in the scope of a Master's Thesis at Ruhr University Bochum. It connects to a device via network or USB and exploits the features of a given printer language. Currently PostScript, PJL and PCL are supported which are spoken by most laser...

[SECURITY] Fedora 25 Update: radicale-1.1.2-1.fc25

The Radicale Project is a CalDAV calendar and CardDAV contact server. It aims to be a light solution, easy to use, easy to install, easy to configur e. As a consequence, it requires few software dependencies and is pre-configur ed to work out-of-the-box. The Radicale Project runs on most of the...

[SECURITY] Fedora 24 Update: radicale-1.1.2-1.fc24

The Radicale Project is a CalDAV calendar and CardDAV contact server. It aims to be a light solution, easy to use, easy to install, easy to configur e. As a consequence, it requires few software dependencies and is pre-configur ed to work out-of-the-box. The Radicale Project runs on most of the...