Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2021-40438: CVE-2021-40438 httpd: mod_proxy: SSRF via a crafted request uri-path containing "unix:" (Multiple Advisories)

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

Red Hat: CVE-2021-40438: CVE-2021-40438 httpd: mod_proxy: SSRF via a crafted request uri-path containing "unix:" (Multiple Advisories)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
09/16/2021
Created
10/15/2021
Added
10/14/2021
Modified
11/26/2024

Description

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

Solution(s)

  • redhat-upgrade-httpd
  • redhat-upgrade-httpd-debuginfo
  • redhat-upgrade-httpd-debugsource
  • redhat-upgrade-httpd-devel
  • redhat-upgrade-httpd-filesystem
  • redhat-upgrade-httpd-manual
  • redhat-upgrade-httpd-tools
  • redhat-upgrade-httpd-tools-debuginfo
  • redhat-upgrade-mod_http2
  • redhat-upgrade-mod_http2-debuginfo
  • redhat-upgrade-mod_http2-debugsource
  • redhat-upgrade-mod_ldap
  • redhat-upgrade-mod_ldap-debuginfo
  • redhat-upgrade-mod_md
  • redhat-upgrade-mod_md-debuginfo
  • redhat-upgrade-mod_md-debugsource
  • redhat-upgrade-mod_proxy_html
  • redhat-upgrade-mod_proxy_html-debuginfo
  • redhat-upgrade-mod_session
  • redhat-upgrade-mod_session-debuginfo
  • redhat-upgrade-mod_ssl
  • redhat-upgrade-mod_ssl-debuginfo

References

  • CVE-2021-40438
  • RHSA-2021:3816
  • RHSA-2021:3836
  • RHSA-2021:3837
  • RHSA-2021:3856

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
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

;