CVE-2019-1054 Microsoft Edge Security Feature Bypass Vulnerability
Attackers can bypass Mark of the Web tagging in Microsoft Edge, circumventing security protections when users visit malicious sites or open crafted files.
- 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-2019-1054?
CVE-2019-1054 is a medium-severity vulnerability in Microsoft Edge, published on 12 Jun 2019. 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 security feature bypass vulnerability exists in Edge that allows for bypassing Mark of the Web Tagging (MOTW). Failing to set the MOTW means that a large number of Microsoft security technologies are bypassed. In a web-based attack scenario, an attacker could host a malicious website that is designed to exploit the security feature bypass. Alternatively, in an email or instant message attack scenario, the attacker could send the targeted user a specially crafted .url file that is designed to exploit the bypass. Additionally, compromised websites or websites that accept or host user-provided content could contain specially crafted content to exploit the security feature bypass. However, in all cases an attacker would have no way to force a user to view attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could entice a user to either click a link that directs the user to the attacker's site or send a malicious attachment. The security update addresses the security feature bypass by correcting how Edge handles MOTW tagging.
Which versions are affected by CVE-2019-1054?
It affects 1 product.
Products include Microsoft Edge.
How do I fix CVE-2019-1054?
No fix has been published for CVE-2019-1054 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1054 being exploited?
There is no known exploitation of CVE-2019-1054 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Edge
Sources
Also known as GHSA-cw3h-wqmv-phpq.