Wednesday, June 19, 2024

Hacker Published Microsoft Edge Remote Code Execution PoC Exploit Online

A Hacker and exploit Writer Bruno Keith revealed a PoC Exploit code online for critical Microsoft Edge remote code execution vulnerability .

A remote code execution vulnerability that presented in the Chakra scripting engine handles objects in memory in Microsoft Edge.

An attacker execution the arbitrary code by using this vulnerability in a current user. Once the Exploit will be successfully executed then the attack gain the current user rights of the compromised system.

Researcher posted Exploit in GitHub in his twitter page and said,
“I published the PoC for CVE-2018-8629: a JIT bug in Chakra fixed in the latest security updates. It resulted in an (almost) unbounded relative R/W”

Also here Write it in Exploit code itself ” Chakra failed to insert value compensation which cause the headSegmentsym to be reloaded but not the headSegmentLength sym, we therefore accessed the new buffer with the wrong length checked”

Administrative User Rights

During the attack phase, if the users logged in with Admin right then the attacker could exploit the vulnerability and they will having an ability to
 take control of an affected system.

In this case, an attacker can install programs; view, change, or delete data; or create new accounts with full user rights.

In other real time web scenario, Attacker hosting the malicious website where exploit has been embedded with in it.

Attacker Trick users to click the link through Microsoft Edge that sent via phishing emails in order to exploit the vulnerability. This could also possible by compromised websites, ads and host provide contents.

Microsoft fixed this vulnerability in last updates and released a security advisory notes along with CVE-2018-8629.

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BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

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