CVE-2021-20220

Description

A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.

Risk Information

Base Score

4.8

MODERATE

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Score

Exploitation Probability

0.182

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2021-20220 are fixed in Undertow-core 2.1.6	Windows
Vulnerabilities CVE-2021-20220 are fixed in Undertow-core 2.0.34	Windows
Multiple Vulnerabilities are affected in Netapp Active Iq Unified Manager 2.3	Windows
Multiple Vulnerabilities are affected in Netapp Oncommand Workflow Automation 2.3	Windows
Vulnerabilities CVE-2021-20220 are fixed in Undertow-core for Linux 2.1.6	Linux
Vulnerabilities CVE-2021-20220 are fixed in Undertow-core for Linux 2.0.34	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234