CVE-1999-0286

In some NT web servers, appending a space at the end of a URL may allow attackers to read source code for active pages

published February 4, 2000

CVSS
—
EPSS
2%
Percentile
80.5
In the wild
Unconfirmed
What it is

⚠️ Just a sneaky space at the end of your URL could spill the beans! In some NT web servers, this simple trick can reveal source code for active pages. 🚨 Think of it like receiving a package that’s barely sealed—just a little wiggle and you can peek inside the contents. That’s how an attacker can exploit the URL space to uncover sensitive code, simply by making a small adjustment. 📦 If an attacker successfully exploits this vulnerability, they could gain access to sensitive source code, potentially exposing the inner workings of your application. This could lead to a cascade of other attacks, including unauthorized data access or further exploitation of the server. Yikes!

Put simply

Think of it like receiving a package that’s barely sealed—just a little wiggle and you can peek inside the contents. That’s how an attacker can exploit the URL space to uncover sensitive code, simply by making a small adjustment. 📦 This vulnerability allows attackers to read server-side source code by appending a space character at the end of a URL, which some NT web servers fail to sanitize properly. This breach can expose sensitive information and application logic without requiring authentication.

What to do

If an attacker successfully exploits this vulnerability, they could gain access to sensitive source code, potentially exposing the inner workings of your application. This could lead to a cascade of other attacks, including unauthorized data access or further exploitation of the server. Yikes! To mitigate this risk, ensure that your web server is updated to the latest security patches. Implement URL validation to strip unnecessary spaces and sanitize all inputs. Regular security assessments can also help catch these sneaky vulnerabilities before they become a problem! You've got this! By taking these steps, you’ll keep your server secure and those pesky vulnerabilities at bay. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01990 · 80.5th percentile
Published
2000-02-04T05:00Z
EPSS history
Timeline
  • 04 FEB 05:00Z
    In some NT web servers, appending a space at the end of a URL may allow attackers to read source code for active pages
    cvelistv5