CVE-2020-1092 Internet Explorer Memory Corruption Vulnerability

High 7.5 Published Updated

Remote attackers can execute arbitrary code via a crafted website, potentially gaining full system control if the user has administrative rights.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-1092?

CVE-2020-1092 is a high-severity memory corruption vulnerability in Microsoft Internet Explorer, published on 21 May 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. An attacker could host a specially crafted website designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action, typically by an enticement in an email or instant message, or by getting the user to open an attachment sent through email. The security update addresses the vulnerability by modifying how Internet Explorer handles objects in memory.

Weakness: CWE-787

Which versions are affected by CVE-2020-1092?

It affects 1 product.

Products include Microsoft Internet Explorer.

How do I fix CVE-2020-1092?

No fix has been published for CVE-2020-1092 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-1092 being exploited?

There is no known exploitation of CVE-2020-1092 in the wild and no public exploit code.

All Microsoft Internet Explorer vulnerabilities

Sources

Also known as GHSA-mhp3-gwmq-pprx.

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