Overview

• Identifier: AIT-SA-20190930-01
• Target: GitLab Omnibus
• Vendor: GitLab
• Version: 7.4 through 12.2.1
• Fixed in Version: 12.2.3, 12.1.8 and 12.0.8
• CVE: CVE-2019-15741
• Accessibility: Local
• Severity: Low
• Author: Wolfgang Hotwagner (AIT Austrian Institute of Technology)

Vulnerability Description

GitLab Omnibus sets the ownership of the log directory to the system-user "git", which might let local users obtain root access because of unsafe interaction with logrotate.

Overview

• System affected: Debian packages of groonga/-httpd 6.1.5-1
• Software-Version: 6.1.5-1
• User-Interaction: Not required
• Impact: Local root
• CVE: CVE-2019-11675

Detailed Description

The path of the logdirectory of groonga-httpd can be manipulated by user groonga:

This year I gave a talk at the Easterhegg 2019 about a Linux kernel rootkit that can handle containers. I mainly presented my Bachelor work from 2017 with some improvements.

Together with a friend we took part of the Capture The Flag at the 35C3. One challenge was that one:

Logrotate is designed to ease administration of systems that generate large numbers of log files. It allows automatic rotation, compression, removal, and mailing of log files. Each log file may be handled daily, weekly, monthly, or when it grows too large. It also gives you a root shell.

I wish you a merry christmas and a happy new year.

This week I received an email from my bank company. They advertised that they are cooperating with the "Post"(Austrian mailprovider) and recommended to use "E-Brief" for notifications from them. My first thought was: "it's E-Mail". Because E-Brief translated from german means: "E-Mail". So I took a look in the FAQ's from the Post and they wrote things like(translated from German):

Your E-"Letter Box" from everywhere

High security

This blog really became 4 years old. When I started to write it was mostly for practicing written english. But my intention was always to give something back to the open-source community. I failed terribly with the first point. My english is as bad as it was before, but I have readers and get responses to some articles. It seems that I didn't failed with "giving something back to the open-source community".

Thank you to all my readers.

Overview

• System affected: PHKP
• Software-Version: including commit 88fd9cfdf14ea4b6ac3e3967feea7bcaabb6f03b
• User-Interaction: Not required
• Impact: Remote-Code-Execution
• CVE: CVE-2018-1000885

Detailed Description

According to the project-page "PHKP is an implementation of the OpenPGP HTTP Keyserver Protocol (HKP) in PHP".