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CVE-2016-4800: Improper Access Control

October 19, 2018 (updated September 3, 2021)

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 restrictions and other security constraints via a URL with certain escaped characters, related to backslashes.

References

  • dev.eclipse.org/mhonarc/lists/jetty-announce/msg00092.html
  • www.ocert.org/advisories/ocert-2016-001.html
  • www.securityfocus.com/bid/90945
  • www.zerodayinitiative.com/advisories/ZDI-16-362
  • github.com/advisories/GHSA-872g-2h8h-362q
  • nvd.nist.gov/vuln/detail/CVE-2016-4800
  • security.netapp.com/advisory/ntap-20190307-0006/
  • www.oracle.com/security-alerts/cpuoct2020.html

Code Behaviors & Features

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Affected versions

All versions starting from 9.3.0 before 9.3.9

Fixed versions

  • 9.3.9

Solution

Upgrade to version 9.3.9 or above.

Impact 9.8 CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-284: Improper Access Control

Source file

maven/org.eclipse.jetty/jetty-server/CVE-2016-4800.yml

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