Server-Side Request Forgery (SSRF) Affecting httpd:2.4/mod_session package, versions <0:2.4.37-39.module+el8.4.0+12865+a7065a39.1


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
96.7% (100th percentile)

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  • Snyk IDSNYK-RHEL8-HTTPD-4081227
  • published26 Sept 2021
  • disclosed16 Sept 2021

Introduced: 16 Sep 2021

CVE-2021-40438  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade RHEL:8 httpd:2.4/mod_session to version 0:2.4.37-39.module+el8.4.0+12865+a7065a39.1 or higher.
This issue was patched in RHSA-2021:3816.

NVD Description

Note: Versions mentioned in the description apply only to the upstream httpd:2.4/mod_session package and not the httpd:2.4/mod_session package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

References

CVSS Scores

version 3.1