GRUB2 bootloader is vulnerable to buffer overflow

Overview The GRUB2 boot loader is vulnerable to buffer overflow, which results in arbitrary code execution during the boot process, even when Secure Boot is enabled. Description GRUB2 is a multiboot boot loader that replaced GRUB Legacy in 2012. A boot loader is the first program that runs upon...

tomcat: deserialization flaw in session persistence storage leading to RCE

A deserialization flaw was discovered in Apache Tomcat's use of a FileStore. Under specific circumstances, an attacker can use a specially crafted request to trigger Remote Code Execution through deserialization of the file under their control. The highest threat from the vulnerability is to data...

Lateral Movement – Services

Services with elevated privileges typically were used in the past as method of privilege escalation or persistence. However a service could be utilized for lateral… Continue reading - Lateral Movement - Services...

CVE-2020-1776

CVE-2020-1776 affects OTRS, specifically the Open-Source Ticket Request System. The vulnerability arises in the session handling when an agent user is renamed or set to invalid; the session belonging to that user remains active. According to the sources, the active session cannot be used to acces...

Mac Cryptocurrency Traders Targeted by Trojanized Apps

Mac users are being targeted by trojanized cryptocurrency trading apps, which once downloaded actually drain victims’ cryptocurrency wallets, researchers warn. The four fake applications in question, Cointrazer, Cupatrade, Licatrade and Trezarus, claim to be rebranded copies of an actual...

A New Ransomware Targeting Apple macOS Users Through Pirated Apps

Cybersecurity researchers this week discovered a new type of ransomware targeting macOS users that spreads via pirated apps. According to several independent reports from K7 Lab malware researcher Dinesh Devadoss, Patrick Wardle, and Malwarebytes, the ransomware variant — dubbed "EvilQuest" — is...

A New Ransomware Targeting Apple macOS Users Through Pirated Apps

Cybersecurity researchers this week discovered a new type of ransomware targeting macOS users that spreads via pirated apps. According to several independent reports from K7 Lab malware researcher Dinesh Devadoss, Patrick Wardle, and Malwarebytes, the ransomware variant — dubbed "EvilQuest " — is...

EvilQuest Mac Ransomware Has Keylogger, Crypto Wallet-Stealing Abilities

A rare new ransomware strain targeting macOS users has been discovered, called EvilQuest. Researchers say the ransomware is being distributed via various versions of pirated software. EvilQuest, first discovered by security researcher Dinesh Devadoss, goes beyond the normal encryption capabilitie...

TAU Threat Analysis: Bundlore (macOS) mm-install-macos

The mm-install-macos variant of the Bundlore family of macOS adware has been around for many years in many variations and delivery methods. Recently, a variant with a novel installation method was discovered. Although most of the installation details were the same or similar to the samples analyz...

Critical Bugs and Backdoor Found in GeoVision's Fingerprint and Card Scanners

GeoVision, a Taiwanese manufacturer of video surveillance systems and IP cameras, recently patched three of the four critical flaws impacting its card and fingerprint scanners that could've potentially allowed attackers to intercept network traffic and stage man-in-the-middle attacks. In a report...

CVE-2019-20850

An issue was discovered in Mattermost Mobile Apps before 1.26.0. A view cache can persist on a device after a logout...

CVE-2019-20849

Mattermost Mobile Apps prior to version 1.26.0 have a cookie-clearing issue: cookie data can persist on the device after logout. Root cause indicated across sources is failure to clear cookies on logout, enabling possible exposure of prior session data. Impact aligns with partial confidentiality ...

IcedID Banker is Back, Adding Steganography, COVID-19 Theme

A new version of the IcedID banking trojan has debuted that notably embraces steganography – the practice of hiding code within images – in order to stealthily infect victims. It has also changed up its process for eavesdropping on victims’ web activity. Researchers at Juniper Threat Labs have...

Qbot Trojan Reappears to Go After U.S. Banking Customers

Qbot, an ever-evolving information-stealing trojan that’s been around since 2008, has reappeared after a hiatus to target customers of U.S. financial institutions. Its latest variant features fresh capabilities to help it remain undetected. Qbot a.k.a. Qakbot or Pinkslipbot harvests browsing data...

Scientific Linux Security Update : tomcat on SL7.x (noarch) (20200611)

Security Fixes : - tomcat: deserialization flaw in session persistence storage leading to RCE CVE-2020-9484 C Tenable Network Security, Inc. The descriptive text is C Scientific Linux. include"compat.inc"; if description scriptid137390; scriptversion"1.7";...

tomcat6 security update

0:6.0.24-115 - Resolves: CVE-2020-9484 tomcat6: tomcat: Apache Tomcat Remote Code Execution via session persistence...

CentOS: Security Advisory for tomcat (CESA-2020:2530)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH 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-or-later This program is free software; you can...

CentOS 7 : tomcat (RHSA-2020:2530)

The remote CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2530 advisory. - When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a an attacker is able to control the...

A Bug in Facebook Messenger for Windows Could've Helped Malware Gain Persistence

Cybersecurity researchers at Reason Labs, the threat research arm of security solutions provider Reason Labs, today disclosed details of a vulnerability they recently discovered in the Facebook Messenger application for Windows. The vulnerability, which resides in Messenger version 460.16, could...

A Bug in Facebook Messenger for Windows Could've Helped Malware Gain Persistence

Cybersecurity researchers at Reason Labs, the threat research arm of security solutions provider Reason Labs, today disclosed details of a vulnerability they recently discovered in the Facebook Messenger application for Windows. The vulnerability, which resides in Messenger version 460.16, could...