Tuesday, May 28, 2024

Zero-Day Remote Code Execution Vulnerability Discovered in Microsoft Windows JScript

New Zero-day Remote code execution vulnerability discovered in Microsoft Windows JScript that allows an attacker to run the arbitrary code on vulnerable installations of Microsoft Windows.

Remote code execution is the ability an attacker has to access someone else’s computing device and make changes, no matter where the device is geographically located.

JScript has a built-in error object that provides error information when an error occurs. The error object provides two useful properties: name and message.

This RCE flaw discovered in the handling of Error objects in JScript and the attacker can perform the specific actions in script.

According to ZDI, specific action leads to an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process.

In this case,  User interaction is required to Successfully exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

This Vulnerability categorized under ZDI(zero-day Initiative) 120-day Public disclosure deadline and if the vendor(Microsoft) failed to fix the vulnerability then the vulnerability will be disclosed publicly.

The researcher explained about the mitigation as Given the nature of the vulnerability the only salient mitigation strategy is to restrict interaction with the application to trusted files.

Microsoft Windows Response

01/23/18 – ZDI sent the vulnerability report to the vendor
01/23/18 – The vendor acknowledged and provided a case number
04/23/18 – The vendor replied that they were having difficulty reproducing the issue report without POC
04/24/18 – ZDI confirmed the POC was sent with the original and sent it again
05/01/18 – The vendor acknowledged receipt of the POC
05/08/18 – The vendor requested an extension
05/18/18 – ZDI replied “We have verified that we sent the POC with the original. The report will 0-day on May 29.

Also Read

Hackers Can Steal Password Hashes & Crash Windows systems Automatically with Microsoft Outlook and OLE

Microsoft Ported Windows Defender Browser Protection Extension to Chrome

Microsoft-Windows Face Authentication Bypassed with a Spoofed Photo

Zero Day Attack Prevention: A Fundamental Pillar of Security


Latest articles

GNOME Remote Desktop Vulnerability Let Attackers Read Login Credentials

GNOME desktop manager was equipped with a new feature which allowed remote users to...

Kesakode: A Remote Hash Lookup Service To Identify Malware Samples

Today marks a significant milestone for Malcat users with the release of version 0.9.6,...

Cisco Firepower Vulnerability Let Attackers Launch SQL Injection Attacks

 A critical vulnerability has been identified in Cisco Firepower Management Center (FMC) Software's web-based...

Hackers Exploit WordPress Plugin to Steal Credit Card Data

Hackers have exploited an obscure WordPress plugin to inject malware into websites, specifically targeting...

Google Patches Chrome Zero-Day: Type Confusion in V8 JavaScript

Google has released a patch for a zero-day exploit in its Chrome browser.The...

Hackers Created Rogue VMs in Recent MITRE’s Cyber Attack

State-sponsored hackers recently exploited vulnerabilities in MITRE's Networked Experimentation, Research, and Virtualization Environment (NERVE).They...

Hackers Weaponizing Microsoft Access Documents To Execute Malicious Program

In multiple aggressive phishing attempts, the financially motivated organization UAC-0006 heavily targeted Ukraine, utilizing...
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

Free Webinar

Live API Attack Simulation

94% of organizations experience security problems in production APIs, and one in five suffers a data breach. As a result, cyber-attacks on APIs increased from 35% in 2022 to 46% in 2023, and this trend continues to rise.
Key takeaways include:

  • An exploit of OWASP API Top 10 vulnerability
  • A brute force ATO (Account Takeover) attack on API
  • A DDoS attack on an API
  • Positive security model automation to prevent API attacks

Related Articles