Two Widely Used Ad Blocker Extensions for Chrome Caught in Ad Fraud Scheme

Two widely used Adblocker Google Chrome extensions, posing as the original — AdBlock and uBlock Origin — extensions on Chrome Web Store, have been caught stuffing cookies in the web browser of millions of users to generate affiliate income from referral schemes fraudulently. There's no doubt web...

Mozilla: Covert Content Attack on S/MIME encryption using a crafted multipart/alternative message

Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird 68.1 and Thunderbird 60.9...

KLA11741 Multiple vulnerabilities in Opera

Multiple vulnerabilities were found in Opera. Malicious users can exploit these vulnerabilities to obtain sensitive information, bypass security restrictions, cause denial of service, spoof user interface, execute arbitrary code. Below is a complete list of vulnerabilities: 1. Policy enforcement...

CVE-2019-16182

A reflected cross-site scripting XSS vulnerability was found in Limesurvey before 3.17.14 that allows remote attackers to inject arbitrary web script or HTML via extensions of uploaded files...

Google Will Now Pay Anyone Who Reports Apps Abusing Users' Data

In the wake of data abuse scandals and several instances of malware app being discovered on the Play Store, Google today expanded its bug bounty program to beef up the security of Android apps and Chrome extensions distributed through its platform. The expansion in Google's vulnerability reward...

UBUNTU-CVE-2019-15651

wolfSSL 4.1.0 has a one-byte heap-based buffer over-read in DecodeCertExtensions in wolfcrypt/src/asn.c because reading the ASNBOOLEAN byte is mishandled for a crafted DER certificate in GetLengthex...

QxSearch hijacker fakes failed installs

Recently, one of the more dominant search hijacker families on our radar has started to display some curious behavior. The family in question is delivered by various Chrome extensions and classified as PUP.Optional.QxSearch because of its description in listings of installed extensions, which tel...

Supply-Chain Attack against the Electron Development Platform

Electron is a cross-platform development system for many popular communications apps, including Skype, Slack, and WhatsApp. Security vulnerabilities in the update system allows someone to silently inject malicious code into applications. From a news article: At the BSides LV security conference o...

solr: remote code execution due to unsafe deserialization

A flaw was found in the Apache Solr's Config API, where it would permit the configuration of the JMX server via an HTTP POST request. An attacker could use this flaw to direct traffic to a malicious RMI server, and then trigger remote code execution or conduct further attacks...

libX11: Off-by-one error in XListExtensions in ListExt.c

An off-by-one error has been discovered in libX11 in functions XGetFontPath, XListExtensions, and XListFonts. An attacker who can either configure a malicious X server or modify the data coming from one could use this flaw to make the program crash or have other unspecified effects, caused by the...

CVE-2018-20938

cPanel before 68.0.27 does not enforce ownership during addpkgext and delpkgext WHM API calls SEC-324...

A week in security (July 15 – 21)

Last week on Malwarebytes Labs, we took an extensive look at Sodinokibi, one of the new ransomware strains found in the wild that many believe picked up where GandCrab left off. We also profiled Extenbro, a Trojan that protects adware; reported on the UK's new Facebook reporting tool, homed in on...

Browser Extensions Scraped Data From Millions of People

Slack passwords, NSO spyware, and more of the week's top security news...

CVE-2019-3571

An input validation issue affected WhatsApp Desktop versions prior to 0.3.3793 which allows malicious clients to send files to users that would be displayed with a wrong extension...

Facebook WhatsApp Input Verification Error Vulnerability

Facebook WhatsApp is a suite of mobile applications from the American company Facebook that utilize the web to deliver text messages. The application uses the contact information in a smartphone to find contacts using the program to send texts, pictures, and more. An input validation error...

Mailvelope Encryption Problem Vulnerability

Mailvelope is a suite of open source extensions for using in-browsers. The program is primarily used for end-to-end encryption of email traffic within a web browser. A cryptographic issue vulnerability exists in Mailvelope versions prior to 3.3.0, which arises from a network system or product tha...

Mac Malware Pushed via Google Search Results, Masquerades as Flash Installer

Never-before-seen Mac malware, dubbed OSX/CrescentCore, has been discovered in the wild. The trojan, spotted on various websites masquerading as an Adobe Flash Player installer, drops malicious applications and browser extensions on victims’ systems when downloaded. OSX/CrescentCore is spread via...

Google Chrome Security Bypass Vulnerability (CNVD-2019-22832)

Google Chrome is a web browser from Google, an American company. A security vulnerability exists in the Extensions API in versions of Google Chrome prior to 68.0.3440.75, which stems from the program failing to adequately validate data. An attacker can exploit the vulnerability to bypass navigati...

CVE-2019-5838

Insufficient policy enforcement in extensions API in Google Chrome prior to 75.0.3770.80 allowed an attacker who convinced a user to install a malicious extension to bypass restrictions on file URIs via a crafted Chrome Extension...

DEBIAN-CVE-2019-5838

Insufficient policy enforcement in extensions API in Google Chrome prior to 75.0.3770.80 allowed an attacker who convinced a user to install a malicious extension to bypass restrictions on file URIs via a crafted Chrome Extension...