Filter by tag: file upload

Kliqqi 3.0.0.5: From Cross-Site Request Forgery to Code Execution

9 min read 20 Dec 2016 by Martin Bednorz
Today’s gift in our advent calendar contains descriptions of vulnerabilities in Kliqqi, the successor to the popular Pligg CMS mostly used for the creation of interactive social communities. Due to missing CSRF protection, an attacker is able to prepare a website that ultimately leads to code execution on the applications server when visited by a target.

OpenConf 5.30 - Multi-Step Remote Command Execution

10 min read 17 Dec 2016 by Johannes Dahse
Today, we present a multi-step command execution vulnerability in the popular conference management software OpenConf. The vulnerability was reported and fixed a while ago, but the chain of 4 exploitation steps involved makes it a very interesting vulnerability sample for our advent calendar. 4 - 3 - 2 - 1 …

PHPKit 1.6.6: Code Execution for Privileged Users

7 min read 8 Dec 2016 by Martin Bednorz
Today’s gift in our advent calendar contains PHPKit, a German web content management system in development since early 2002. With its ~42,000 lines of code it is a rather small application and the latest version is 1.6.6. This post describes two severe vulnerabilities in the administration section that require a minimal user permission for exploitation.

Serendipity 2.0.3: From File Upload to Code Execution

8 min read 7 Dec 2016 by Hendrik Buchwald
Serendipity is an easy to maintain blog engine. There are a lot of plugins that can be used to extend the functionality, this article will focus on its core though. With close to 125,000 lines it is a medium-sized web application. In this post, we will show how attackers can bypass existing security mechanisms which can lead to remote code execution attacks.