Monday, July 15, 2024
EHA

Outlook Users Beware 0-Day Exploit Released On Hacking Forums

Outlook has identified a security flaw that affects how it handles certain hyperlinks. 

Malware actors actively exploit the vulnerability in real-world attacks.

The assigned CVE number for this vulnerability is CVE-2024-21413, with a severity rating of 9.8 (Critical).

Microsoft has successfully resolved the vulnerability in question and implemented the fix in their February 2024 Patch Tuesday release.

In case of successful exploitation of the vulnerability, a malicious actor can bypass the protected view of Office and open a file in editing mode instead of the protected mode.

Outlook 0-Day RCE Flaw

According to the Checkpoint report, if the hyperlink starts with http:// or https://, Outlook uses Windows’s default browser to open the URL.

If there are additional protocols, such as the “Skype” URL protocol, clicking on the hyperlink will trigger a security warning.

In other cases, like the “file://” protocol, Outlook did not display a warning dialog box.

A slight modification in the “file://” protocol link bypasses the previously shown security restriction and proceeds to access the resource.

According to experts, utilizing this particular resource involves utilizing the SMB protocol.

However, this protocol has a flaw where it inadvertently reveals the local NTLM credentials during the access process.

Exploit on Hacking Forums

The Daily Dark Web recently reported that specific hacking forums have been discussing an exploit for CVE-2024-21413.

This exploit allows attackers to access NTLM information and execute remote code.

The vulnerability can exploit the Office Protected View and use it as a means of attack to target other Office applications.

You can block malware, including Trojans, ransomware, spyware, rootkits, worms, and zero-day exploits, with Perimeter81 malware protection. All are extremely harmful, can wreak havoc, and damage your network.

Stay updated on Cybersecurity news, Whitepapers, and Infographics. Follow us on LinkedIn & Twitter.

Website

Latest articles

Critical Cellopoint Secure Email Gateway Flaw Let Attackers Execute Arbitrary Code

A critical vulnerability has been discovered in the Cellopoint Secure Email Gateway, identified as...

Singapore Banks to Phase out OTPs for Bank Account Logins Within 3 Months

The Monetary Authority of Singapore (MAS) and The Association of Banks in Singapore (ABS)...

GuardZoo Android Malware Attacking military personnel via WhatsApp To Steal Sensitive Data

A Houthi-aligned group has been deploying Android surveillanceware called GuardZoo since October 2019 to...

ViperSoftX Weaponizing AutoIt & CLR For Stealthy PowerShell Execution

ViperSoftX is an advanced malware that has become more complicated since its recognition in...

Malicious NuGet Campaign Tricking Developers To Inject Malicious Code

Hackers often target NuGet as it's a popular package manager for .NET, which developers...

Akira Ransomware Attacking Airline Industry With Legitimate Tools

Airlines often become the target of hackers as they contain sensitive personal and financial...

DarkGate Malware Exploiting Excel Files And SMB File Shares

DarkGate, a Malware-as-a-Service (MaaS) platform, experienced a surge in activity since September 2023, employing...
Guru baran
Guru baranhttps://gbhackers.com
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Free Webinar

Low Rate DDoS Attack

9 of 10 sites on the AppTrana network have faced a DDoS attack in the last 30 days.
Some DDoS attacks could readily be blocked by rate-limiting, IP reputation checks and other basic mitigation methods.
More than 50% of the DDoS attacks are employing botnets to send slow DDoS attacks where millions of IPs are being employed to send one or two requests per minute..
Key takeaways include:

  • The mechanics of a low-DDoS attack
  • Fundamentals of behavioural AI and rate-limiting
  • Surgical mitigation actions to minimize false positives
  • Role of managed services in DDoS monitoring

Related Articles