Servlet Path Normalization Flaw in Undertow Server Products
CVE-2020-1757

8.1HIGH

Key Information:

Vendor
Red Hat
Status
Undertow
Vendor
CVE Published:
21 April 2020

Summary

A flaw exists in the Undertow server that affects multiple versions, where the servlet container incorrectly normalizes the servlet path. This occurs due to the truncation of the path after a semicolon, potentially allowing a security bypass within application mappings. This vulnerability can lead malicious actors to exploit application behavior and compromise security configurations.

Affected Version(s)

undertow all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1

undertow all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1757
x_refsource_CONFIRM

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.