CVE-2021-40438

critical

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.

References

https://httpd.apache.org/security/vulnerabilities_24.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/

https://lists.apache.org/thread.html/[email protected]%3Cusers.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.httpd.apache.org%3E

https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/

https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html

https://security.netapp.com/advisory/ntap-20211008-0004/

https://lists.apache.org/thread.html/[email protected]%3Cbugs.httpd.apache.org%3E

https://www.debian.org/security/2021/dsa-4982

https://lists.apache.org/thread.html/[email protected]%3Cusers.httpd.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.httpd.apache.org%3E

https://www.tenable.com/security/tns-2021-17

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ

https://www.oracle.com/security-alerts/cpujan2022.html

https://www.oracle.com/security-alerts/cpuapr2022.html

https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf

https://security.gentoo.org/glsa/202208-20

Details

Source: MITRE

Published: 2021-09-16

Updated: 2022-08-15

Type: CWE-918

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 9

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

Impact Score: 6

Exploitability Score: 2.2

Severity: CRITICAL