[SECURITY] Fedora 30 Update: systemd-241-12.git1e19bcd.fc30

systemd is a system and service manager that runs as PID 1 and starts the rest of the system. It provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups,...

[SECURITY] Fedora 30 Update: systemd-241-8.git9ef65cb.fc30

systemd is a system and service manager that runs as PID 1 and starts the rest of the system. It provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups,...

50m-ctf: LFI on Accounting server and RCE on FliteThermostat admin server

Summary: An attacker is able to download local files on the Accounting server due leveraging improper input sanitization in the Invoice PDF generator. In the same fashion an attacker is also able to issue server-side requests on the Accounting server through user-controlled CSS, possibly leading ...

50m-ctf: CTF write-up: c8889970d9fb722066f31e804e351993

So the CTF starts with this tweet. F434370 The first image is about the 50 million in bounties but the second one looks related to the CTF. The first thing that comes to mind when relating CTFs and images is "steganography". Using the all purpose steg tool zsteg as our first resort, we discover...

[SECURITY] Fedora 29 Update: systemd-239-12.git8bca462.fc29

systemd is a system and service manager that runs as PID 1 and starts the rest of the system. It provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups,...

CentOS 7 : systemd (CESA-2019:0049)

An update for systemd is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

[SECURITY] Fedora 29 Update: systemd-239-8.gite339eae.fc29

systemd is a system and service manager that runs as PID 1 and starts the rest of the system. It provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups,...

LSB-Steganography - Python program to steganography files into images using the Least Significant Bit

Python program based on stegonographical methods to hide files in images using the Least Significant Bit technique. I used the most basic method which is the least significant bit. A colour pixel is composed of red, green and blue, encoded on one byte. The idea is to store information in the firs...

Machine Learning Image Steganalysis: Aletheia

Aletheia is a steganalysis tool for the detection of hidden messages in images. The goal of steganalysis is to identify suspected packages, determine whether or not they have a payload encoded into them, and, if possible, recover that payload. Unlike cryptanalysis, steganalysis generally starts...

[SECURITY] Fedora 27 Update: systemd-234-9.fc27

systemd is a system and service manager that runs as PID 1 and starts the rest of the system. It provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups,...

Steganography in contemporary cyberattacks

Steganography is the practice of sending data in a concealed format so the very fact of sending the data is disguised. The word steganography is a combination of the Greek words στεγανός steganos, meaning "covered, concealed, or protected", and γράφειν graphein meaning "writing". Unlike...

[SECURITY] Fedora 26 Update: systemd-233-4.fc26

systemd is a system and service manager that runs as PID 1 and starts the rest of the system. It provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups,...

IBM WebSphere Application Server 7.0 < 7.0.0.39 Multiple Vulnerabilities (FREAK)

Binary data 9700.prm...

IBM Storwize SSL/TLS RC4 Stream Cipher Key Invariance (Bar Mitzvah)

According to its self-reported version number, the IBM Storwize server running on the remote host is affected by a security feature bypass vulnerability, known as Bar Mitzvah, due to improper combination of state data with key data by the RC4 cipher algorithm during the initialization phase. A...

Atlassian JIRA < 6.4.10 / 7.0.0-OD-02 MitM Plaintext Disclosure (Bar Mitzvah)

According to its self-reported version number, the instance of Atlassian JIRA hosted on the remote web server is prior to 6.4.10 or 7.0.0-OD-02. It is, therefore, potentially affected by a security feature bypass vulnerability, known as Bar Mitzvah, due to improper combination of state data with...

SUSE SLED12 / SLES12 Security Update : glibc (SUSE-SU-2015:1844-1)

glibc was updated to fix bugs and security issues. Security issues fixed : - A buffer overflow in nssdns was fixed that could lead to crashes. CVE-2015-1781, bsc927080, BZ 18287 - A denial of service attack out of memory in the NSS files backend was fixed CVE-2014-8121, bsc918187, GLIBC BZ 18007...

Oracle: Security Advisory (ELSA-2013-0132)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SSL/TLS: "Invariance Weakness" vulnerability in RC4 stream cipher

The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic...

SUSE-RU-2015:1239-1 Recommended update for freetype2

This update of freetype2 fixes a regression introduced by the security fix for CVE-2014-9671. This is not itself a security issue, it just improves on a previous one. This update is needed for LSB 5 fontconfig usage...

SSL/TLS: "Invariance Weakness" vulnerability in RC4 stream cipher

The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic...