CVE-2021-44224

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

20/12/2021

Last modified:

07/11/2023

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).

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.20 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): High

Base Score 3.x

8.20

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:N/C:N/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.40 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

6.40

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:apache:http_server::::::::	2.4.7 (including)	2.4.52 (excluding)
cpe: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 (including)	5.20.0 (excluding)
cpe:2.3:a:tenable:tenable.sc::::::::	5.16.0 (including)	202201.1 (excluding)
cpe:2.3:a:oracle:communications_element_manager::::::::		9.0 (excluding)
cpe: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::::::::		9.0 (excluding)
cpe:2.3:a:oracle:communications_session_route_manager::::::::		9.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:apache:http_server::::::::	2.4.7 (including)	2.4.52 (excluding)
cpe: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 (including)	5.20.0 (excluding)
cpe:2.3:a:tenable:tenable.sc::::::::	5.16.0 (including)	202201.1 (excluding)
cpe:2.3:a:oracle:communications_element_manager::::::::		9.0 (excluding)
cpe: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::::::::		9.0 (excluding)
cpe:2.3:a:oracle:communications_session_route_manager::::::::		9.0 (excluding)

CVE-2021-44224

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools