Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2021-22959: HTTP Request Smuggling due to spaces in headers (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Red Hat: CVE-2021-22959: HTTP Request Smuggling due to spaces in headers (Multiple Advisories)

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
11/15/2021
Created
12/18/2021
Added
12/17/2021
Modified
12/15/2023

Description

The parser in accepts requests with a space (SP) right after the header name before the colon. This can lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6.

Solution(s)

  • redhat-upgrade-nodejs
  • redhat-upgrade-nodejs-debuginfo
  • redhat-upgrade-nodejs-debugsource
  • redhat-upgrade-nodejs-devel
  • redhat-upgrade-nodejs-docs
  • redhat-upgrade-nodejs-full-i18n
  • redhat-upgrade-nodejs-nodemon
  • redhat-upgrade-nodejs-packaging
  • redhat-upgrade-npm

References

  • DSA-5170
  • CVE-2021-22959
  • RHSA-2021:5171
  • RHSA-2022:0246
  • RHSA-2022:0350

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;