Possible NULL dereference or SSRF in forward proxy configurations in Apache HTTP Server 2.4.51 and earlier (Apache Software Foundation Apache HTTP Server)
At a glance
- Source
- NVD
- EPSS
- EPSS 82.30 % · percentile 100 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apache
- NVD status
- Modified
Description
A 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).
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- http://httpd.apache.org/security/vulnerabilities_24.html
- http://www.openwall.com/lists/oss-security/2021/12/20/3
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/
- https://www.debian.org/security/2022/dsa-5035
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://security.netapp.com/advisory/ntap-20211224-0001/
- https://www.tenable.com/security/tns-2022-01
- https://www.tenable.com/security/tns-2022-03
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://support.apple.com/kb/HT213257
- https://support.apple.com/kb/HT213256
- https://support.apple.com/kb/HT213255
- http://seclists.org/fulldisclosure/2022/May/33
- http://seclists.org/fulldisclosure/2022/May/35
- http://seclists.org/fulldisclosure/2022/May/38
- https://security.gentoo.org/glsa/202208-20
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-31073
- GCVE · GCVE-0-2021-44224
CERT-FR advisories
- CERTFR-2024-AVI-0575 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
- CERTFR-2022-AVI-467 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2022-AVI-466 — Multiples vulnérabilités dans les produits Apple · cert.ssi.gouv.fr
- CERTFR-2022-AVI-038 — Multiples vulnérabilités dans Tenable.sc · cert.ssi.gouv.fr
- CERTFR-2022-AVI-035 — Multiples vulnérabilités dans IBM WebSphere · cert.ssi.gouv.fr
- CERTFR-2022-AVI-006 — Multiples vulnérabilités dans les produits Tenable · cert.ssi.gouv.fr
- CERTFR-2021-AVI-972 — Multiples vulnérabilités dans Apache httpd · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*≥ 2.4.7 < 2.4.52cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*≥ 5.14.0 < 5.20.0cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*≥ 5.16.0 < 202201.1cpe:2.3:a:oracle:communications_element_manager:*:*:*:*:*:*:*:*< 9.0cpe:2.3:a:oracle:communications_operations_monitor:4.0:*:*:*:*:*:*:*cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:*cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*:*:*:*:*cpe:2.3:a:oracle:communications_operations_monitor:5.0:*:*:*:*:*:*:*cpe:2.3:a:oracle:communications_session_report_manager:*:*:*:*:*:*:*:*< 9.0cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:*< 9.0cpe:2.3:a:oracle:http_server:-:*:*:*:*:*:*:*cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:*:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-008:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-001:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-002:*:*:*:*:*:*cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-003:*:*:*:*:*:*cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*< 10.15.7cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*≥ 11.0 < 11.6.6cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*≥ 12.0.0 < 12.4
Affected products
| Product | Versions |
|---|---|
| Apache Software Foundation · Apache HTTP Server | affected 2.4.7 < Apache HTTP Server 2.4* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |