Category: Application Security

  • Critical Microsoft Telnet Server Vulnerability Enables Zero-Click NTLM Authentication Bypass

    A critical zero-click vulnerability in Microsoft’s Telnet Server allows remote attackers to bypass NTLM authentication and gain administrator access on legacy Windows systems without credentials. Discovered by Hacker Fantastic, there’s no patch available, necessitating immediate action by SOC teams to disable Telnet services and implement security measures until a fix is released.

  • Netizen: Monday Security Brief (4/28/2024)

    Recent cybersecurity alerts highlight two major threats: a phishing campaign targeting WooCommerce users, tricking them into installing malware disguised as a security patch, and a vulnerability in SAP NetWeaver affecting over 1,200 servers. Both incidents emphasize the urgency for website administrators to enhance security measures and maintain up-to-date systems to mitigate risks.

  • Netizen: April 2025 Vulnerability Review

    In April 2025, five critical vulnerabilities were identified affecting various systems, including Microsoft Windows and Apple devices. Prompt patching is crucial to prevent exploitation, especially from ransomware and state-sponsored attacks. Netizen offers cybersecurity services to help organizations manage these vulnerabilities effectively while ensuring compliance and providing automated assessments for enhanced security awareness.

  • Netizen Cybersecurity Bulletin (April 24th, 2025)

    Iranian hackers are deploying MURKYTOUR malware via fake job offers targeting Israel to compromise systems. Meanwhile, a new Linux rootkit named Curing exploits the io_uring interface to evade detection by traditional security tools, highlighting vulnerabilities in Linux environments. Organizations must enhance detection methods to counter these evolving threats effectively.

  • AI Drastically Accelerates Exploit Development for CVE-2025-32433

    Artificial intelligence has evolved from an analytical tool to a critical threat multiplier, as seen in the rapid exploitation of vulnerabilities like CVE-2025-32433. Security teams face a diminishing window to respond, necessitating proactive, automated patch deployment and real-time threat management. Companies like Netizen provide essential cybersecurity services to address these challenges.

  • Phishers Abuse Google DKIM Replay and Sites to Deliver Signed Credential-Stealing Emails

    A phishing campaign exploits a loophole in Google’s email authentication, allowing attackers to send convincing DKIM-signed emails from fake accounts. These emails, often appearing alongside real notifications, lead to fraudulent login pages. Google is aware and has implemented fixes while urging users to use two-factor authentication for enhanced security.

  • Netizen: Monday Security Brief (4/21/2024)

    Phishers are exploiting Google’s OAuth framework to send DKIM-authenticated spoofed emails, tricking users into interacting with fake pages. Meanwhile, Microsoft Entra ID experienced widespread user lockouts due to a faulty rollout of the MACE Credential Revocation feature, leading to confusion without signs of hacking.

  • Funding Crisis Threatens CVE Program—New Foundation Steps In to Maintain Operations

    The CVE program, crucial for global cybersecurity, faces upheaval due to MITRE’s contract expiration. Concerns arose over vulnerability tracking fragmentation and response difficulties. A new nonprofit, the CVE Foundation, was established to sustain operations independently. Meanwhile, MITRE secured short-term funding, ensuring temporary continuity amidst significant structural changes in cybersecurity management.

  • Netizen: Monday Security Brief (4/14/2024)

    Chrome 136 has addressed a 20-year privacy flaw that exploited visited link styling to track browsing history. This update ensures that visited links are only identified within the same site and frame origin. Meanwhile, the Tycoon2FA phishing kit has evolved, enhancing its evasion techniques and targeting precision against multi-factor authentication, using advanced obfuscation and malicious…

  • Log4j Explained: What It Is, How It Works, and How to Fix It

    In December 2021, a critical vulnerability called Log4Shell was discovered in Log4j, an open-source Java logging library, exposing numerous systems to remote code execution attacks. The flaw’s ease of exploitation led to extensive efforts to assess and mitigate risks, with organizations urged to apply updates and monitor for signs of attacks.