Ransomware Attackers Partnering With Cybercrime Groups to Hack High-Profile Targets – Tempemail

As ransomware attacks against critical infrastructure skyrocket, new research shows that threat actors behind such disruptions are increasingly shifting from using email messages as an intrusion route to purchasing access from cybercriminal enterprises that have already infiltrated major targets. “Ransomware operators often buy access from independent cybercriminal groups who infiltrate Continue Reading

New TLS Attack Lets Attackers Launch Cross-Protocol Attacks Against Secure Sites – Tempemail

Researchers have disclosed a new type of attack that exploits misconfigurations in transport layer security (TLS) servers to redirect HTTPS traffic from a victim’s web browser to a different TLS service endpoint located on another IP address to steal sensitive information. The attacks have been dubbed ALPACA, short for “Application Continue Reading

Tempemail spoofing: how attackers impersonate legitimate senders- Tempemail

Introduction In a nutshell, email spoofing is the creation of fake emails that seem legitimate. This article analyzes the spoofing of email addresses through changing the From header, which provides information about the sender’s name and address. SMTP (Simple Mail Transfer Protocol, the main email transmission protocol in TCP/IP networks) Continue Reading

New Bluetooth Flaws Let Attackers Impersonate Legitimate Devices – Tempemail

Adversaries could exploit newly discovered security weaknesses in Bluetooth Core and Mesh Profile Specifications to masquerade as legitimate devices and carry out man-in-the-middle (MitM) attacks. “Devices supporting the Bluetooth Core and Mesh Specifications are vulnerable to impersonation attacks and AuthValue disclosure that could allow an attacker to impersonate a legitimate Continue Reading

U.S. Pipeline Ransomware Attackers Go Dark After Servers and Bitcoin Are Seized – Tempemail

Just as Colonial Pipeline restored all of its systems to operational status in the wake of a crippling ransomware incident a week ago, DarkSide, the cybercrime syndicate behind the attack, claimed it lost control of its infrastructure, citing a law enforcement seizure. All the dark websites operated by the gang, Continue Reading

New TsuNAME Flaw Could Let Attackers Take Down Authoritative DNS Servers – Tempemail

Security researchers Thursday disclosed a new critical vulnerability affecting Domain Name System (DNS) resolvers that could be exploited by adversaries to carry out reflection-based denial-of-service attacks against authoritative nameservers. The flaw, called ‘TsuNAME,’ was discovered by researchers from SIDN Labs and InternetNZ, which manage the national top-level internet domains ‘.nl’ Continue Reading

New WhatsApp Bugs Could’ve Let Attackers Hack Your Phone Remotely – Tempemail

Facebook-owned WhatsApp recently addressed two security vulnerabilities in its messaging app for Android that could have been exploited to execute malicious code remotely on the device and even compromise encrypted communications. The flaws take aim at devices running Android versions up to and including Android 9 by carrying out what’s Continue Reading

Critical Cisco Jabber Bug Could Let Attackers Hack Remote Systems – Tempemail

Cisco on Wednesday released software updates to address multiple vulnerabilities affecting its Jabber messaging clients across Windows, macOS, Android, and iOS. Successful exploitation of the flaws could permit an “attacker to execute arbitrary programs on the underlying operating system with elevated privileges, access sensitive information, intercept protected network traffic, or Continue Reading

Shadow Attacks Let Attackers Replace Content in Digitally Signed PDFs – Tempemail

Researchers have demonstrated a novel class of attacks that could allow a bad actor to potentially circumvent existing countermeasures and break the integrity protection of digitally signed PDF documents. Called “Shadow attacks” by academics from Ruhr-University Bochum, the technique uses the “enormous flexibility provided by the PDF specification so that Continue Reading

New Hack Lets Attackers Bypass MasterCard PIN by Using Them As Visa Card – Tempemail

Cybersecurity researchers have disclosed a novel attack that could allow criminals to trick a point of sale terminal into transacting with a victim’s Mastercard contactless card while believing it to be a Visa card. The research, published by a group of academics from the ETH Zurich, builds on a study Continue Reading