Vulnerability Details CVE-2021-44224
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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.03
EPSS Ranking 85.9%
CVSS Severity
CVSS v3 Score 8.2
CVSS v2 Score 6.4
Products affected by CVE-2021-44224
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cpe:2.3:a:apache:http_server:2.4.10
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cpe:2.3:a:apache:http_server:2.4.11
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cpe:2.3:a:apache:http_server:2.4.12
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cpe:2.3:a:apache:http_server:2.4.13
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cpe:2.3:a:apache:http_server:2.4.14
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cpe:2.3:a:apache:http_server:2.4.15
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cpe:2.3:a:apache:http_server:2.4.16
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cpe:2.3:a:apache:http_server:2.4.17
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cpe:2.3:a:apache:http_server:2.4.18
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cpe:2.3:a:apache:http_server:2.4.19
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cpe:2.3:a:apache:http_server:2.4.20
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cpe:2.3:a:apache:http_server:2.4.21
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cpe:2.3:a:apache:http_server:2.4.22
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cpe:2.3:a:apache:http_server:2.4.23
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cpe:2.3:a:apache:http_server:2.4.24
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cpe:2.3:a:apache:http_server:2.4.25
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cpe:2.3:a:apache:http_server:2.4.26
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cpe:2.3:a:apache:http_server:2.4.27
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cpe:2.3:a:apache:http_server:2.4.28
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cpe:2.3:a:apache:http_server:2.4.29
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cpe:2.3:a:apache:http_server:2.4.30
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cpe:2.3:a:apache:http_server:2.4.31
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cpe:2.3:a:apache:http_server:2.4.32
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cpe:2.3:a:apache:http_server:2.4.33
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cpe:2.3:a:apache:http_server:2.4.34
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cpe:2.3:a:apache:http_server:2.4.35
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cpe:2.3:a:apache:http_server:2.4.36
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cpe:2.3:a:apache:http_server:2.4.37
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cpe:2.3:a:apache:http_server:2.4.38
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cpe:2.3:a:apache:http_server:2.4.39
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cpe:2.3:a:apache:http_server:2.4.40
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cpe:2.3:a:apache:http_server:2.4.41
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cpe:2.3:a:apache:http_server:2.4.42
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cpe:2.3:a:apache:http_server:2.4.43
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cpe:2.3:a:apache:http_server:2.4.44
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cpe:2.3:a:apache:http_server:2.4.45
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cpe:2.3:a:apache:http_server:2.4.46
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cpe:2.3:a:apache:http_server:2.4.47
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cpe:2.3:a:apache:http_server:2.4.48
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cpe:2.3:a:apache:http_server:2.4.49
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cpe:2.3:a:apache:http_server:2.4.50
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cpe:2.3:a:apache:http_server:2.4.51
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cpe:2.3:a:apache:http_server:2.4.7
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cpe:2.3:a:apache:http_server:2.4.8
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cpe:2.3:a:apache:http_server:2.4.9
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cpe:2.3:a:oracle:communications_element_manager:8.0.0
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cpe:2.3:a:oracle:communications_element_manager:8.1.0
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cpe:2.3:a:oracle:communications_element_manager:8.1.1
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cpe:2.3:a:oracle:communications_element_manager:8.2.0
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cpe:2.3:a:oracle:communications_element_manager:8.2.0.0
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cpe:2.3:a:oracle:communications_element_manager:8.2.1
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cpe:2.3:a:oracle:communications_element_manager:8.2.2
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cpe:2.3:a:oracle:communications_element_manager:8.2.2.1
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cpe:2.3:a:oracle:communications_element_manager:8.2.4.0
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cpe:2.3:a:oracle:communications_operations_monitor:4.0
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cpe:2.3:a:oracle:communications_operations_monitor:4.3
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cpe:2.3:a:oracle:communications_operations_monitor:4.4
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cpe:2.3:a:oracle:communications_operations_monitor:5.0
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cpe:2.3:a:oracle:communications_session_report_manager:-
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cpe:2.3:a:oracle:communications_session_report_manager:8.0.0
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cpe:2.3:a:oracle:communications_session_report_manager:8.0.0.0
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cpe:2.3:a:oracle:communications_session_report_manager:8.1.0
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cpe:2.3:a:oracle:communications_session_report_manager:8.1.1
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cpe:2.3:a:oracle:communications_session_report_manager:8.2.0
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cpe:2.3:a:oracle:communications_session_report_manager:8.2.1
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cpe:2.3:a:oracle:communications_session_report_manager:8.2.2
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cpe:2.3:a:oracle:communications_session_report_manager:8.2.2.1
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cpe:2.3:a:oracle:communications_session_report_manager:8.2.4.0
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cpe:2.3:a:oracle:communications_session_report_manager:8.2.5.0
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cpe:2.3:a:oracle:communications_session_route_manager:-
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cpe:2.3:a:oracle:communications_session_route_manager:8.0.0
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cpe:2.3:a:oracle:communications_session_route_manager:8.1.0
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cpe:2.3:a:oracle:communications_session_route_manager:8.1.1
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cpe:2.3:a:oracle:communications_session_route_manager:8.2.0
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cpe:2.3:a:oracle:communications_session_route_manager:8.2.0.0
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cpe:2.3:a:oracle:communications_session_route_manager:8.2.1
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cpe:2.3:a:oracle:communications_session_route_manager:8.2.2
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cpe:2.3:a:oracle:communications_session_route_manager:8.2.2.1
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cpe:2.3:a:oracle:communications_session_route_manager:8.2.4
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cpe:2.3:a:oracle:communications_session_route_manager:8.2.4.0
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cpe:2.3:a:oracle:communications_session_route_manager:8.2.5
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cpe:2.3:a:oracle:http_server:-
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cpe:2.3:a:oracle:http_server:12.2.1.3.0
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cpe:2.3:a:oracle:http_server:12.2.1.4.0
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cpe:2.3:a:oracle:instantis_enterprisetrack:17.1
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cpe:2.3:a:oracle:instantis_enterprisetrack:17.2
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cpe:2.3:a:oracle:instantis_enterprisetrack:17.3
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cpe:2.3:a:tenable:tenable.sc:5.14.0
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cpe:2.3:a:tenable:tenable.sc:5.14.1
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cpe:2.3:a:tenable:tenable.sc:5.16.0
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cpe:2.3:a:tenable:tenable.sc:5.17.0
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cpe:2.3:a:tenable:tenable.sc:5.18.0
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cpe:2.3:a:tenable:tenable.sc:5.19.0
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cpe:2.3:a:tenable:tenable.sc:5.19.1
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cpe:2.3:a:tenable:tenable.sc:5.20.0
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cpe:2.3:a:tenable:tenable.sc:5.20.1
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cpe:2.3:a:tenable:tenable.sc:5.21.0
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cpe:2.3:a:tenable:tenable.sc:5.23.1
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cpe:2.3:o:apple:mac_os_x:10.15.7
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cpe:2.3:o:apple:macos:1.0
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cpe:2.3:o:apple:macos:11.0
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cpe:2.3:o:apple:macos:11.0.1
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cpe:2.3:o:apple:macos:11.1
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cpe:2.3:o:apple:macos:11.1.0
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cpe:2.3:o:apple:macos:11.2
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cpe:2.3:o:apple:macos:11.2.1
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cpe:2.3:o:apple:macos:11.3
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cpe:2.3:o:apple:macos:11.3.1
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cpe:2.3:o:apple:macos:11.4
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cpe:2.3:o:apple:macos:11.5
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cpe:2.3:o:apple:macos:11.5.1
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cpe:2.3:o:apple:macos:11.6
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cpe:2.3:o:apple:macos:11.6.1
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cpe:2.3:o:apple:macos:11.6.2
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cpe:2.3:o:apple:macos:11.6.3
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cpe:2.3:o:apple:macos:11.6.5
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cpe:2.3:o:apple:macos:12.0.0
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cpe:2.3:o:apple:macos:12.0.1
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cpe:2.3:o:apple:macos:12.1
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cpe:2.3:o:apple:macos:12.2
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cpe:2.3:o:apple:macos:12.2.1
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cpe:2.3:o:apple:macos:12.3
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cpe:2.3:o:apple:macos:12.3.1
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cpe:2.3:o:apple:macos:7.5.3
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cpe:2.3:o:apple:macos:7.6
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cpe:2.3:o:apple:macos:7.6.1
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cpe:2.3:o:apple:macos:8.0
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cpe:2.3:o:apple:macos:8.1
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cpe:2.3:o:apple:macos:8.5
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cpe:2.3:o:apple:macos:8.6
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cpe:2.3:o:apple:macos:9.0
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:debian:debian_linux:11.0
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cpe:2.3:o:fedoraproject:fedora:34
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cpe:2.3:o:fedoraproject:fedora:35
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cpe:2.3:o:fedoraproject:fedora:36