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Linphone SIP Stack Bug Could Let Attackers Remotely Crash Client Devices

Linphone SIP Stack Bug Could Let Attackers Remotely Crash Client Devices

Sep 01, 2021
Cybersecurity researchers on Tuesday disclosed details about a zero-click security vulnerability in the Linphone Session Initiation Protocol ( SIP ) stack that could be remotely exploited without any action from a victim to crash the SIP client and cause a denial-of-service (DoS) condition. Tracked as  CVE-2021-33056  (CVSS score: 7.5), the issue concerns a NULL pointer dereference vulnerability in the " belle-sip " component, a C-language library used to implement SIP transport, transaction, and dialog layers, with all versions prior to  4.5.20  affected by the flaw. The weakness was discovered and reported by industrial cybersecurity company Claroty. Linphone is an open-source and cross-platform SIP client with support for voice and video calls, end-to-end encrypted messaging, and audio conference calls, among others. SIP, on the other hand, is a signaling protocol used for initiating, maintaining, and terminating real-time multimedia communication sessions for...
This Bug Could Have Let Anyone Crash WhatsApp Of All Group Members

This Bug Could Have Let Anyone Crash WhatsApp Of All Group Members

Dec 17, 2019
WhatsApp, the world's most popular end-to-end encrypted messaging application, patched an incredibly frustrating software bug that could have allowed a malicious group member to crash the messaging app for all members of the same group, The Hacker News learned. Just by sending a maliciously crafted message to a targeted group, an attacker can trigger a fully-destructive WhatsApp crash-loop, forcing all group members to completely uninstall the app, reinstall it, and remove the group to regain normal function. Since the group members can't selectively delete the malicious message without opening the group window and re-triggering the crash-loop, they have to lose the entire group chat history, indefinitely, to get rid of it. Discovered by researchers at Israeli cybersecurity firm Check Point , the latest bug resided in the WhatsApp's implementation of XMPP communication protocol that crashes the app when a member with invalid phone number drops a message in the grou...
Researchers Null-Route Over 550 Kimwolf and Aisuru Botnet Command Servers

Researchers Null-Route Over 550 Kimwolf and Aisuru Botnet Command Servers

Jan 14, 2026 Botnet / Network Security
The Black Lotus Labs team at Lumen Technologies said it null-routed traffic to more than 550 command-and-control (C2) nodes associated with the AISURU/Kimwolf botnet since early October 2025. AISURU and its Android counterpart, Kimwolf, have emerged as some of the biggest botnets in recent times, capable of directing enslaved devices to participate in distributed denial-of-service (DDoS) attacks and relay malicious traffic for residential proxy services . Details about Kimwolf emerged last month when QiAnXin XLab published an exhaustive analysis of the malware, which turns compromised devices – mostly unsanctioned Android TV streaming devices – into a residential proxy by delivering a software development kit (SDK) called ByteConnect either directly or through sketchy apps that come pre-installed on them. The net result is that the botnet has expanded to infect more than 2 million Android devices with an exposed Android Debug Bridge (ADB) service by tunneling through residentia...
cyber security

GitLab Security Best Practices

websiteWizDevSecOps / Compliance
Learn how to reduce real-world GitLab risk by implementing essential hardening steps across the full software delivery lifecycle.
cyber security

SANS ICS Command Briefing: Preparing for What Comes Next in Industrial Security

websiteSANSICS Security / Security Training
Experts discuss access control, visibility, recovery, and governance for ICS/OT in the year ahead.
⚡ Weekly Recap: Fortinet Exploits, RedLine Clipjack, NTLM Crack, Copilot Attack & More

⚡ Weekly Recap: Fortinet Exploits, RedLine Clipjack, NTLM Crack, Copilot Attack & More

Jan 19, 2026 Hacking News / Cybersecurity
In cybersecurity, the line between a normal update and a serious incident keeps getting thinner. Systems that once felt reliable are now under pressure from constant change. New AI tools, connected devices, and automated systems quietly create more ways in, often faster than security teams can react. This week’s stories show how easily a small mistake or hidden service can turn into a real break-in. Behind the headlines, the pattern is clear. Automation is being used against the people who built it. Attackers reuse existing systems instead of building new ones. They move faster than most organizations can patch or respond. From quiet code flaws to malware that changes while it runs, attacks are focusing less on speed and more on staying hidden and in control. If you’re protecting anything connected—developer tools, cloud systems, or internal networks—this edition shows where attacks are going next, not where they used to be. ⚡ Threat of the Week Critical Fortinet Flaw Comes Under...
⚡ Weekly Recap: Lazarus Hits Web3, Intel/AMD TEEs Cracked, Dark Web Leak Tool & More

⚡ Weekly Recap: Lazarus Hits Web3, Intel/AMD TEEs Cracked, Dark Web Leak Tool & More

Nov 03, 2025 Cybersecurity / Hacking News
Cyberattacks are getting smarter and harder to stop. This week, hackers used sneaky tools, tricked trusted systems, and quickly took advantage of new security problems—some just hours after being found. No system was fully safe. From spying and fake job scams to strong ransomware and tricky phishing, the attacks came from all sides. Even encrypted backups and secure areas were put to the test. Keep reading for the full list of the biggest cyber news from this week—clearly explained and easy to follow. ⚡ Threat of the Week Motex Lanscope Flaw Exploited to Drop Gokcpdoor — A suspected Chinese cyber espionage actor known as Tick has been attributed to a target campaign that has leveraged a recently disclosed critical security flaw in Motex Lanscope Endpoint Manager (CVE-2025-61932, CVSS score: 9.3) to infiltrate target networks and deploy a backdoor called Gokcpdoor. Sophos, which disclosed details of the activity, said it was "limited to sectors aligned with their intelligence...
⚡ Weekly Recap: APT Campaigns, Browser Hijacks, AI Malware, Cloud Breaches and Critical CVEs

⚡ Weekly Recap: APT Campaigns, Browser Hijacks, AI Malware, Cloud Breaches and Critical CVEs

May 26, 2025 Cybersecurity / Hacking News
Cyber threats don't show up one at a time anymore. They’re layered, planned, and often stay hidden until it’s too late. For cybersecurity teams, the key isn’t just reacting to alerts—it’s spotting early signs of trouble before they become real threats. This update is designed to deliver clear, accurate insights based on real patterns and changes we can verify. With today’s complex systems, we need focused analysis—not noise. What you’ll see here isn’t just a list of incidents, but a clear look at where control is being gained, lost, or quietly tested. ⚡ Threat of the Week Lumma Stealer, DanaBot Operations Disrupted — A coalition of private sector companies and law enforcement agencies have taken down the infrastructure associated with Lumma Stealer and DanaBot . Charges have also been unsealed against 16 individuals for their alleged involvement in the development and deployment of DanaBot. The malware is equipped to siphon data from victim computers, hijack banking session...
Critical Remote Hacking Flaws Disclosed in Linphone and MicroSIP Softphones

Critical Remote Hacking Flaws Disclosed in Linphone and MicroSIP Softphones

Oct 14, 2021
Multiple security vulnerabilities have been disclosed in softphone software from Linphone and MicroSIP that could be exploited by an unauthenticated remote adversary to crash the client and even extract sensitive information like password hashes by simply making a malicious call. The vulnerabilities, which were discovered by Moritz Abrell of German pen-testing firm SySS GmbH, have since been addressed by the respective manufacturers following responsible disclosure. Softphones are essentially software-based phones that mimic desk phones and allow for making telephone calls over the Internet without the need for using dedicated hardware. At the core of the issues are the SIP services offered by the clients to connect two peers to facilitate telephony services in IP-based mobile networks. SIP aka Session Initiation Protocol is a  signaling protocol  that's used to control interactive communication sessions, such as voice, video, chat and instant messaging, as well as games ...
New Android Browser Vulnerability Is a “Privacy Disaster” for 70% Of Android Users

New Android Browser Vulnerability Is a “Privacy Disaster” for 70% Of Android Users

Sep 17, 2014
A Serious vulnerability has been discovered in the Web browser installed by default on a large number (Approximately 70%) of Android devices, that could allow an attacker to hijack users' open websites, and there is now a Metasploit module available to easily exploit this dangerous flaw. The exploit targets vulnerability ( CVE-2014-6041 ) in Android versions 4.2.1 and all older versions and was first disclosed right at the start of September by an independent security researcher Rafay Baloch, but there has not been much public discussion on it. The Android bug has been called a " privacy disaster " by Tod Beardsley, a developer for the Metasploit security toolkit, and in order to explain you why, he has promised to post a video that is " sufficiently shocking ." “ By malforming a javascript: URL handler with a prepended null byte, the AOSP, or Android Open Source Platform (AOSP) Browser) fails to enforce the Same-Origin Policy (SOP) browser secur...
North Korean Hackers Deploy BeaverTail Malware via 11 Malicious npm Packages

North Korean Hackers Deploy BeaverTail Malware via 11 Malicious npm Packages

Apr 05, 2025 Malware / Supply Chain Attack
The North Korean threat actors behind the ongoing Contagious Interview campaign are spreading their tentacles on the npm ecosystem by publishing more malicious packages that deliver the BeaverTail malware, as well as a new remote access trojan (RAT) loader. "These latest samples employ hexadecimal string encoding to evade automated detection systems and manual code audits, signaling a variation in the threat actors' obfuscation techniques," Socket security researcher Kirill Boychenko said in a report. The packages in question, which were collectively downloaded more than 5,600 times prior to their removal, are listed below - empty-array-validator twitterapis dev-debugger-vite snore-log core-pino events-utils icloud-cod cln-logger node-clog consolidate-log consolidate-logger The disclosure comes nearly a month after a set of six npm packages were discovered distributing BeaverTail , a JavaScript stealer that's also capable of delivering a Python-b...
Court Documents Reveal How Feds Spied On Connected Cars For 15 Years

Court Documents Reveal How Feds Spied On Connected Cars For 15 Years

Jan 16, 2017
It's not always necessary to break into your computer or smartphone to spy on you. Today all are day-to-day devices are becoming more connected to networks than ever to add convenience and ease to daily activities. But here's what we forget: These connected devices can be turned against us because we are giving companies, hackers, and law enforcement a large number of entry points to break into our network. These connected devices can also be a great boon for law enforcement that can listen and track us everywhere. Let's take the recent example of 2016 Arkansas murder case where Amazon was asked to hand over audio recordings from a suspect's Echo. However, that was not the first case where feds asked any company to hand over data from a suspect's connected device, as they have long retrieved such information from connected cars. According to court documents obtained by Forbes , United States federal agencies have a 15-year history of " Cartapping ...
TrickBot Now Exploits Infected PCs to Launch RDP Brute Force Attacks

TrickBot Now Exploits Infected PCs to Launch RDP Brute Force Attacks

Mar 18, 2020
A new module for TrickBot banking Trojan has recently been discovered in the wild that lets attackers leverage compromised systems to launch brute-force attacks against selected Windows systems running a Remote Desktop Protocol (RDP) connection exposed to the Internet. The module, dubbed " rdpScanDll ," was discovered on January 30 and is said to be still in development, said cybersecurity firm Bitdefender in a report shared with The Hacker news. According to the researchers, the rdpScanDll brute-forcing module has so far attempted to target 6,013 RDP servers belonging to enterprises in telecom, education, and financial sectors in the U.S. and Hong Kong. The malware authors behind TrickBot specialize in releasing new modules and versions of the Trojan in an attempt to expand and refine its capabilities. "The flexibility allowed by this modular architecture has turned TrickBot into a very complex and sophisticated malware capable of a wide range of malicious a...
OpenSSL Releases Patch For "High" Severity Vulnerability

OpenSSL Releases Patch For "High" Severity Vulnerability

Nov 10, 2016
As announced on Tuesday, the OpenSSL project team released OpenSSL version 1.1.0c that addresses three security vulnerabilities in its software. The most serious of all is a heap-based buffer overflow bug (CVE-2016-7054) related to Transport Layer Security (TLS) connections using *-CHACHA20-POLY1305 cipher suites. The vulnerability, reported by Robert Święcki of the Google Security Team on September 25, can lead to DoS attack by corrupting larger payloads, resulting in a crash of OpenSSL. The severity of the flaw is rated "High" and does not affect OpenSSL versions prior to 1.1.0. However, the OpenSSL team reports there is no evidence that the flaw is exploitable beyond a DoS attack. The OpenSSL project also patches a moderate severity flaw (CVE-2016-7053) that can cause applications to crash. "Applications parsing invalid CMS structures can crash with a NULL pointer dereference. This is caused by a bug in the handling of the ASN.1 CHOICE type in OpenSSL 1.1.0 ...
Several New Critical Flaws Affect CODESYS Industrial Automation Software

Several New Critical Flaws Affect CODESYS Industrial Automation Software

Jul 21, 2021
Cybersecurity researchers on Wednesday disclosed multiple security vulnerabilities impacting CODESYS automation software and the WAGO programmable logic controller (PLC) platform that could be remotely exploited to take control of a company's cloud operational technology (OT) infrastructure. The flaws can be turned "into innovative attacks that could put threat actors in position to remotely control a company's cloud OT implementation, and threaten any industrial process managed from the cloud," the New York-headquartered industrial security company Claroty said in a report shared with The Hacker News, adding they "can be used to target a cloud-based management console from a compromised field device, or take over a company's cloud and attack PLCs and other devices to disrupt operations." CODESYS is a development environment for programming controller applications, enabling easy configuration of PLCs in industrial control systems. WAGO PFC100/200 is...
Nmap 5.59 BETA1 - 40 new NSE scripts & improved IPv6

Nmap 5.59 BETA1 - 40 new NSE scripts & improved IPv6

Jul 01, 2011
Nmap 5.59 BETA1 - 40 new NSE scripts & improved IPv6 Official Change Log: o [NSE] Added 40 scripts, bringing the total to 217!  You can learn  more about any of them at http://nmap.org/nsedoc/. Here are the new  ones (authors listed in brackets):  + afp-ls: Lists files and their attributes from Apple Filing    Protocol (AFP) volumes. [Patrik Karlsson]  + backorifice-brute: Performs brute force password auditing against    the BackOrifice remote administration (trojan) service. [Gorjan    Petrovski]  + backorifice-info: Connects to a BackOrifice service and gathers    information about the host and the BackOrifice service    itself. [Gorjan Petrovski]  + broadcast-avahi-dos: Attempts to discover hosts in the local    network using the DNS Service Discovery protocol, then tests    whether each host is vulnerable to the Avahi NULL UDP packet    denial...
Apache OpenMeetings Web Conferencing Tool Exposed to Critical Vulnerabilities

Apache OpenMeetings Web Conferencing Tool Exposed to Critical Vulnerabilities

Jul 20, 2023 Vulnerability / Software Security
Multiple security flaws have been disclosed in Apache OpenMeetings, a web conferencing solution, that could be potentially exploited by malicious actors to seize control of admin accounts and run malicious code on susceptible servers. "Attackers can bring the application into an unexpected state, which allows them to take over any user account, including the admin account," Sonar vulnerability researcher Stefan Schiller  said  in a report shared with The Hacker News. "The acquired admin privileges can further be leveraged to exploit another vulnerability allowing attackers to execute arbitrary code on the Apache OpenMeetings server." Following responsible disclosure on March 20, 2023, the vulnerabilities were addressed with the release of  Openmeetings version 7.1.0  that was released on May 9, 2023. The list of three flaws is as follows - CVE-2023-28936  (CVSS score: 5.3) - Insufficient check of invitation hash CVE-2023-29032  (CVSS score: 8.1) - An...
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