CVE-2017-0055 Cross-site scripting in IIS Server

Medium 6.1 Published 17 Mar 2017 Updated 5 Aug 2024

Remote attackers can execute scripts with local user privileges via cross-site scripting in Microsoft IIS Server.

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-2017-0055?

CVE-2017-0055 is a medium-severity cross-site scripting vulnerability in Microsoft Windows 10, published on 17 Mar 2017. 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

Microsoft Internet Information Server (IIS) in Windows Vista SP2; Windows Server 2008 SP2 and R2; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to perform cross-site scripting and run script with local user privileges via a crafted request, aka "Microsoft IIS Server XSS Elevation of Privilege Vulnerability."

Weakness: CWE-79

Which versions are affected by CVE-2017-0055?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2017-0055?

No fix has been published for CVE-2017-0055 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2017-0055 being exploited?

There is no known exploitation of CVE-2017-0055 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-pw85-hhgc-r9w6.