CVE-2016-4800

The path normalization mechanism in PathResource class in Eclipse Jetty 9.3.x before 9.3.9 on Windows allows remote attackers to bypass protected resource…

published April 13, 2017

CVSS
—
EPSS
6%
Percentile
93.6
In the wild
Unconfirmed
What it is

⚠️ A sneaky path bypass lurks in Eclipse Jetty! This vulnerability can let attackers slip past protected resources using cleverly constructed URLs that take advantage of backslashes. 🔍 Think of it like a delivery driver taking a shortcut through restricted areas because the address was misread — they shouldn’t be there, but nobody noticed the detour! An attacker could exploit this flaw to access sensitive resources that they shouldn't normally reach, potentially leading to unauthorized information disclosure or system manipulation. The ramifications could include leaking user data or altering server configurations, which is absolutely devastating for security!

Put simply

Think of it like a delivery driver taking a shortcut through restricted areas because the address was misread — they shouldn’t be there, but nobody noticed the detour! The path normalization issue in the PathResource class allows attackers to bypass security constraints by using specific escaped characters in URLs, undermining the expected access controls on Windows installations of Jetty 9.3.x before 9.3.9.

What to do

An attacker could exploit this flaw to access sensitive resources that they shouldn't normally reach, potentially leading to unauthorized information disclosure or system manipulation. The ramifications could include leaking user data or altering server configurations, which is absolutely devastating for security! To secure your application, upgrade to Eclipse Jetty version 9.3.9 or later as soon as possible. Review your URL handling and path validation logic to ensure there are no opportunities for similar bypasses. Regularly audit your deployment for any unexpected access patterns. You've got this! Fixing this issue will help you keep your resources safe and sound. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.06363 · 93.6th percentile
Published
2017-04-13T14:00Z
EPSS history
Timeline
  • 13 APR 14:00Z
    The path normalization mechanism in PathResource class in Eclipse Jetty 9.3.x before 9.3.9 on Windows allows remote attackers to bypass protected resource…
    cvelistv5