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Vulnerability Details : CVE-2021-40438

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.
Publish Date : 2021-09-16 Last Update Date : 2021-11-29
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 918

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2021:3816: httpd:2.4 security update (Important) oval:com.redhat.rhsa:def:20213816 unix
RHSA-2021:3856: httpd security update (Important) oval:com.redhat.rhsa:def:20213856 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2021-40438

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Http Server * * * * Version Details Vulnerabilities
2 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
3 OS Debian Debian Linux 10.0 * * * Version Details Vulnerabilities
4 OS Debian Debian Linux 11.0 * * * Version Details Vulnerabilities
5 OS F5 F5os * * * * Version Details Vulnerabilities
6 OS Fedoraproject Fedora 34 * * * Version Details Vulnerabilities
7 OS Fedoraproject Fedora 35 * * * Version Details Vulnerabilities
8 Application Netapp Clustered Data Ontap - * * * Version Details Vulnerabilities
9 Application Netapp Storagegrid - * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Http Server 1
Debian Debian Linux 3
F5 F5os 1
Fedoraproject Fedora 2
Netapp Clustered Data Ontap 1
Netapp Storagegrid 1

- References For CVE-2021-40438

https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c@%3Cusers.httpd.apache.org%3E
MLIST [httpd-users] 20210923 Re: [users@httpd] Re: [External] : [users@httpd] 2.4.49 security fixes: more info
https://www.tenable.com/security/tns-2021-17 CONFIRM
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00@%3Cusers.httpd.apache.org%3E
MLIST [httpd-users] 20211019 Re: [users@httpd] Regarding CVE-2021-40438
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
FEDORA FEDORA-2021-e3f6dd670d
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html
MLIST [debian-lts-announce] 20211002 [SECURITY] [DLA 2776-1] apache2 security update
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37@%3Cbugs.httpd.apache.org%3E
MLIST [httpd-bugs] 20211008 [Bug 65616] CVE-2021-36160 regression
https://security.netapp.com/advisory/ntap-20211008-0004/ CONFIRM
https://www.debian.org/security/2021/dsa-4982
DEBIAN DSA-4982
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a@%3Cusers.httpd.apache.org%3E
MLIST [httpd-users] 20211019 [users@httpd] Regarding CVE-2021-40438
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
FEDORA FEDORA-2021-dce7e7738e
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432@%3Cusers.httpd.apache.org%3E
MLIST [httpd-users] 20210923 [users@httpd] Re: [External] : [users@httpd] 2.4.49 security fixes: more info
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
CISCO 20211124 Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697@%3Cusers.httpd.apache.org%3E
MLIST [httpd-users] 20210923 [users@httpd] 2.4.49 security fixes: more info
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029@%3Cusers.httpd.apache.org%3E
MLIST [httpd-users] 20210923 Re: [users@httpd] 2.4.49 security fixes: more info

- Metasploit Modules Related To CVE-2021-40438

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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