CVE-2016-3321 Information disclosure in n/a
Local attackers can enumerate files on the system by exploiting file existence checks in Internet Explorer via HTML5 sandbox iframes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-3321?
CVE-2016-3321 is a low-severity vulnerability in Microsoft Internet Explorer, published on 9 Aug 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Microsoft Internet Explorer 10 and 11 load different files for attempts to open a file:// URL depending on whether the file exists, which allows local users to enumerate files via vectors involving a file:// URL and an HTML5 sandbox iframe, aka "Internet Explorer Information Disclosure Vulnerability."
Weakness: CWE-200
Which versions are affected by CVE-2016-3321?
It affects 1 product.
Products include Microsoft Internet Explorer.
How do I fix CVE-2016-3321?
No fix has been published for CVE-2016-3321 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-3321 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-3321 exists.
Public exploit code: 1 Metasploit module.
Other vulnerabilities in Microsoft Internet Explorer
- CVE-2014-1776 Microsoft Internet Explorer Memory Corruption
- CVE-2021-27085 Microsoft Internet Explorer Remote Code Execution
- CVE-2017-0222 Microsoft Internet Explorer Remote Code Execution
- CVE-2017-0210 Microsoft Internet Explorer Privilege Escalation
- CVE-2017-0149 Microsoft Internet Explorer Memory Corruption
Sources
Also known as GHSA-q89r-f728-w9pv.