CVE-2021-44224

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Summary

CVECVE-2021-44224
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-12-20 12:15:00 UTC
Updated2023-11-07 03:39:00 UTC
DescriptionA crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apache Http Server All All All All
Operating System Apple Macos All All All All
Operating System Apple Macos 10.15.7 All All All
Operating System Apple Macos 10.15.7 security_update_2020-001 All All
Operating System Apple Macos 10.15.7 security_update_2021-001 All All
Operating System Apple Macos 10.15.7 security_update_2021-002 All All
Operating System Apple Macos 10.15.7 security_update_2021-003 All All
Operating System Apple Macos 10.15.7 security_update_2021-004 All All
Operating System Apple Macos 10.15.7 security_update_2021-005 All All
Operating System Apple Macos 10.15.7 security_update_2021-006 All All
Operating System Apple Macos 10.15.7 security_update_2021-007 All All
Operating System Apple Macos 10.15.7 security_update_2021-008 All All
Operating System Apple Macos 10.15.7 security_update_2022-001 All All
Operating System Apple Macos 10.15.7 security_update_2022-002 All All
Operating System Apple Macos 10.15.7 security_update_2022-003 All All
Operating System Apple Mac Os X 10.15.7 All All All
Operating System Apple Mac Os X 10.15.7 security_update_2020-001 All All
Operating System Apple Mac Os X 10.15.7 security_update_2021-001 All All
Operating System Apple Mac Os X 10.15.7 security_update_2021-002 All All
Operating System Apple Mac Os X 10.15.7 security_update_2021-003 All All
Operating System Apple Mac Os X 10.15.7 security_update_2021-004 All All
Operating System Apple Mac Os X 10.15.7 security_update_2021-005 All All
Operating System Apple Mac Os X 10.15.7 security_update_2021-006 All All
Operating System Apple Mac Os X 10.15.7 security_update_2021-007 All All
Operating System Apple Mac Os X 10.15.7 security_update_2021-008 All All
Operating System Apple Mac Os X 10.15.7 security_update_2022-001 All All
Operating System Apple Mac Os X 10.15.7 security_update_2022-002 All All
Operating System Apple Mac Os X 10.15.7 security_update_2022-003 All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 11.0 All All All
Operating System Fedoraproject Fedora 34 All All All
Operating System Fedoraproject Fedora 35 All All All
Operating System Fedoraproject Fedora 36 All All All
Application Oracle Communications Element Manager All All All All
Application Oracle Communications Operations Monitor 4.0 All All All
Application Oracle Communications Operations Monitor 4.3 All All All
Application Oracle Communications Operations Monitor 4.4 All All All
Application Oracle Communications Operations Monitor 5.0 All All All
Application Oracle Communications Session Report Manager All All All All
Application Oracle Communications Session Route Manager All All All All
Application Oracle Http Server - All All All
Application Oracle Http Server 12.2.1.3.0 All All All
Application Oracle Http Server 12.2.1.4.0 All All All
Application Oracle Instantis Enterprisetrack 17.1 All All All
Application Oracle Instantis Enterprisetrack 17.2 All All All
Application Oracle Instantis Enterprisetrack 17.3 All All All
Application Tenable Tenable.sc All All All All

References

ReferenceSourceLinkTags
Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project MISC httpd.apache.org
Apache HTTPD: Multiple Vulnerabilities (GLSA 202208-20) — Gentoo security GENTOO security.gentoo.org
[SECURITY] Fedora 36 Update: httpd-2.4.53-1.fc36 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
About the security content of macOS Big Sur 11.6.6 - Apple Support CONFIRM support.apple.com
Full Disclosure: APPLE-SA-2022-05-16-2 macOS Monterey 12.4 FULLDISC seclists.org
About the security content of macOS Monterey 12.4 - Apple Support CONFIRM support.apple.com
[R1] Tenable.sc 5.20.0 Fixes Multiple Vulnerabilities - Security Advisory | Tenable® CONFIRM www.tenable.com
Oracle Critical Patch Update Advisory - April 2022 MISC www.oracle.com
oss-security - CVE-2021-44224: Apache HTTP Server: Possible NULL dereference or SSRF in forward proxy configurations in Apache HTTP Server 2.4.51 and earlier MLIST www.openwall.com
[SECURITY] Fedora 34 Update: httpd-2.4.53-1.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Debian -- Security Information -- DSA-5035-1 apache2 DEBIAN www.debian.org
About the security content of Security Update 2022-004 Catalina - Apple Support CONFIRM support.apple.com
[SECURITY] Fedora 35 Update: httpd-2.4.53-1.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[R1] Stand-alone Security Patch Available for Tenable.sc versions 5.16.0 to 5.19.1: Patch 202201.1 - Security Advisory | Tenable® CONFIRM www.tenable.com
Oracle Critical Patch Update Advisory - January 2022 MISC www.oracle.com
[SECURITY] Fedora 36 Update: httpd-2.4.53-1.fc36 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Full Disclosure: APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6 FULLDISC seclists.org
[SECURITY] Fedora 34 Update: httpd-2.4.53-1.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 35 Update: httpd-2.4.52-1.fc35 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Full Disclosure: APPLE-SA-2022-05-16-4 Security Update 2022-004 Catalina FULLDISC seclists.org
[SECURITY] Fedora 35 Update: httpd-2.4.53-1.fc35 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
December 2021 Apache HTTP Server Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
[SECURITY] Fedora 35 Update: httpd-2.4.52-1.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: 漂亮鼠

LEGACY: TengMA(@Te3t123)

Legacy QID Mappings

  • 150456 Apache HTTP Server NULL pointer dereference and Server Side Request Forgery (SSRF) Vulnerability (CVE-2021-44224)
  • 159811 Oracle Enterprise Linux Security Update for httpd:2.4 (ELSA-2022-1915)
  • 178985 Debian Security Update for apache2 (DSA 5035-1)
  • 179048 Debian Security Update for apache2 (DLA 2907-1)
  • 182652 Debian Security Update for apache2 (CVE-2021-44224)
  • 198620 Ubuntu Security Notification for Apache Hypertext Transfer Protocol (HTTP) Server Vulnerabilities (USN-5212-1)
  • 240307 Red Hat Update for httpd:2.4 (RHSA-2022:1915)
  • 240698 Red Hat Update for httpd24-httpd (RHSA-2022:6753)
  • 240794 Red Hat Update for JBoss Core Services (RHSA-2022:7143)
  • 282186 Fedora Security Update for httpd (FEDORA-2021-29a536c2ae)
  • 282500 Fedora Security Update for httpd (FEDORA-2022-b4103753e9)
  • 282521 Fedora Security Update for httpd (FEDORA-2022-21264ec6db)
  • 296061 Oracle Solaris 11.4 Support Repository Update (SRU) 42.113.1 Missing (CPUJAN2022)
  • 353114 Amazon Linux Security Advisory for httpd24 : ALAS-2022-1560
  • 353126 Amazon Linux Security Advisory for httpd : ALAS2-2022-1737
  • 354343 Amazon Linux Security Advisory for httpd : ALAS2022-2022-018
  • 354482 Amazon Linux Security Advisory for httpd : ALAS2022-2022-202
  • 354577 Amazon Linux Security Advisory for httpd : ALAS2022-2022-202
  • 355264 Amazon Linux Security Advisory for httpd : ALAS2023-2023-072
  • 376550 Oracle Hypertext Transfer Protocol Server (HTTP Server) Multiple Vulnerabilities (CPUAPR2022)
  • 376607 Apple macOS Security Update 2022-004 Catalina (HT213255)
  • 376608 Apple MacOS Big Sur 11.6.6 Not Installed (HT213256)
  • 376612 Apple macOS Monterey 12.4 Not Installed (HT213257)
  • 378371 IBM Hypertext Transfer Protocol (HTTP) Server Multiple Vulnerabilities (6540288)
  • 500025 Alpine Linux Security Update for apache2
  • 503716 Alpine Linux Security Update for apache2
  • 671368 EulerOS Security Update for httpd (EulerOS-SA-2022-1306)
  • 671389 EulerOS Security Update for httpd (EulerOS-SA-2022-1290)
  • 671419 EulerOS Security Update for httpd (EulerOS-SA-2022-1349)
  • 671509 EulerOS Security Update for httpd (EulerOS-SA-2022-1488)
  • 671515 EulerOS Security Update for httpd (EulerOS-SA-2022-1507)
  • 690751 Free Berkeley Software Distribution (FreeBSD) Security Update for apache httpd (ca982e2d-61a9-11ec-8be6-d4c9ef517024)
  • 710595 Gentoo Linux Apache HTTPD Multiple Vulnerabilities (GLSA 202208-20)
  • 730313 Apache Hypertext Transfer Protocol (HTTP) Server NULL Pointer Dereference and Server Side Request Forgery (SSRF) Vulnerability
  • 751596 SUSE Enterprise Linux Security Update for apache2 (SUSE-SU-2022:0065-1)
  • 751604 OpenSUSE Security Update for apache2 (openSUSE-SU-2022:0091-1)
  • 751606 SUSE Enterprise Linux Security Update for apache2 (SUSE-SU-2022:0119-1)
  • 751711 SUSE Enterprise Linux Security Update for apache2 (SUSE-SU-2022:0440-1)
  • 752001 SUSE Enterprise Linux Security Update for apache2 (SUSE-SU-2022:0091-1)
  • 753104 SUSE Enterprise Linux Security Update for apache2 (SUSE-SU-2022:0091-2)
  • 900352 Common Base Linux Mariner (CBL-Mariner) Security Update for httpd (7034)
  • 901448 Common Base Linux Mariner (CBL-Mariner) Security Update for httpd (7043-1)
  • 940509 AlmaLinux Security Update for httpd:2.4 (ALSA-2022:1915)
  • 960327 Rocky Linux Security Update for httpd:2.4 (RLSA-2022:1915)
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