Saturday, June 22, 2024

Hacker Leaked Another New Windows Zero-day bug PoC Exploit Online

Sanboxescaper ( pseudonym – Twitter), a hacker who used to reveal zero-day bugs online leaked another Windows Zero-day flaw that allows attacker overwrite an arbitrary data in the targeted file.

She released a Proof-of-concept (PoC) exploit in GitHub and it was a fourth Windows zero-day bug that she discovered and leaked last year.

Very recently she posted windows Zero-day vulnerability POC online that contain exploit code that allow attacker to read any file in the vulnerable windows system.

Windows Zero-day Flaw

This vulnerability discovered and exposed by Belgium security researcher in Twitter under the handle name of “#SandboxEscaper“ and she continuously leaked Zero-day bugs 1, 2, 3, since Aug 2018.

New Zero-day exploit given by the researcher via Github allows overwriting a pci.sys’. that she named it as angrypolarbearbug.

The exploit she wrote works with some limitations and may not have the expected effect on some CPUs. For instance, she could not reproduce the bug on a machine with one CPU core.

Further analyses were done by the vulnerability analyst from CERT/CC, and he reports that the overwrite does not occur consistently.

He added it in his Tweet, This latest 0day from SandboxEscaper requires a lot of patience to reproduce. And beyond that, it only *sometimes* overwrites the target file with data influenced by the attacker. Usually it’s unrelated WER data.

‘Since the bug exploit the ‘Pci.sys’, it may cause DDOS even for the users who have not an admin privilege and also it leads to disabling the 3 rd part Anti-Virus Software.

Usually, she didn’t report the bug to Microsoft but this time she reported to
Microsoft Security Response Center(MSRC) which is also she quoted in her tweet, unfortunately, Twitter Suspended her account.

This is a second Zeroday bug within a month of December 2018 and the first flow affected the ReadFile.exe, A windows functions that help to reads data from the specified file or input/output (I/O) device.

You can follow us on LinkedinTwitterFacebook for daily Cybersecurity updates also you can take the Best Cybersecurity courses online to keep your self-updated.

Website

Latest articles

PrestaShop Website Under Injection Attack Via Facebook Module

A critical vulnerability has been discovered in the "Facebook" module (pkfacebook) from Promokit.eu for...

Beware Of Illegal OTT Platforms That Exposes Sensitive Personal Information

A recent rise in data breaches from illegal Chinese OTT platforms exposes that user...

Beware Of Zergeca Botnet with Advanced Scanning & Persistence Features

A new botnet named Zergeca has emerged, showcasing advanced capabilities that set it apart...

Mailcow Mail Server Vulnerability Let Attackers Execute Remote Code

Two critical vulnerabilities (CVE-2024-31204 and CVE-2024-30270) affecting Mailcow versions before 2024-04 allow attackers to...

Hackers Attacking Vaults, Buckets, And Secrets To Steal Data

Hackers target vaults, buckets, and secrets to access some of the most classified and...

Hackers Weaponizing Windows Shortcut Files for Phishing

LNK files, a shortcut file type in Windows OS, provide easy access to programs,...

New Highly Evasive SquidLoader Attacking Employees Mimic As Word Document

Researchers discovered a new malware loader named SquidLoader targeting Chinese organizations, which arrives as...
Balaji
Balaji
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

API Vulnerability Scanning

71% of the internet traffic comes from APIs so APIs have become soft targets for hackers.Securing APIs is a simple workflow provided you find API specific vulnerabilities and protect them.In the upcoming webinar, join Vivek Gopalan, VP of Products at Indusface as he takes you through the fundamentals of API vulnerability scanning..
Key takeaways include:

  • Scan API endpoints for OWASP API Top 10 vulnerabilities
  • Perform API penetration testing for business logic vulnerabilities
  • Prioritize the most critical vulnerabilities with AcuRisQ
  • Workflow automation for this entire process

Related Articles