CVE-2020-1056 Microsoft Edge Elevation of Privilege Vulnerability
Attackers can bypass cross-domain policies in Microsoft Edge to access information from one domain and inject it into another, leading to privilege escalation.
- 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-2020-1056?
CVE-2020-1056 is a medium-severity vulnerability in Microsoft Edge, 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
An elevation of privilege vulnerability exists when Microsoft Edge does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain. In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action. For example, an attacker could trick users into clicking a link that takes them to the attacker's site. An attacker who successfully exploited this vulnerability could elevate privileges in affected versions of Microsoft Edge. The security update addresses the vulnerability by helping to ensure that cross-domain policies are properly enforced in Microsoft Edge.
Which versions are affected by CVE-2020-1056?
It affects 1 product.
Products include Microsoft Edge.
How do I fix CVE-2020-1056?
No fix has been published for CVE-2020-1056 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-1056 being exploited?
There is no known exploitation of CVE-2020-1056 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Edge
Sources
Also known as GHSA-mg74-7m97-36j6.