CVE-1999-1087 Security feature bypass in n/a
Remote attackers can bypass Internet Explorer's Local Intranet Zone security restrictions by using dotless IP addresses in URLs, enabling unauthorized activities.
- 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-1999-1087?
CVE-1999-1087 is a high-severity vulnerability in Microsoft Internet Explorer, published on 9 Mar 2002. 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
Internet Explorer 4 treats a 32-bit number ("dotless IP address") in the a URL as the hostname instead of an IP address, which causes IE to apply Local Intranet Zone settings to the resulting web page, allowing remote malicious web servers to conduct unauthorized activities by using URLs that contain the dotless IP address for their server.
Which versions are affected by CVE-1999-1087?
It affects 1 product.
Products include Microsoft Internet Explorer.
How do I fix CVE-1999-1087?
No fix has been published for CVE-1999-1087 yet. Limit exposure of the affected software until one is available.
Is CVE-1999-1087 being exploited?
There is no known exploitation of CVE-1999-1087 in the wild and no public exploit code.
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-9rv3-rxw8-xr7c.