CVE-2021-44224

high

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).

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/[email protected]/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/

https://security.netapp.com/advisory/ntap-20211224-0001/

https://www.debian.org/security/2022/dsa-5035

https://www.tenable.com/security/tns-2022-01

https://www.tenable.com/security/tns-2022-03

https://www.oracle.com/security-alerts/cpujan2022.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/

https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/

https://lists.fedoraproject.org/archives/list/[email protected]/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/

https://www.oracle.com/security-alerts/cpuapr2022.html

https://support.apple.com/kb/HT213255

https://support.apple.com/kb/HT213256

https://support.apple.com/kb/HT213257

http://seclists.org/fulldisclosure/2022/May/38

http://seclists.org/fulldisclosure/2022/May/33

http://seclists.org/fulldisclosure/2022/May/35

https://security.gentoo.org/glsa/202208-20

Details

Source: MITRE

Published: 2021-12-20

Updated: 2022-08-15

Type: CWE-476

Risk Information

CVSS v2

Base Score: 6.4

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:P

Impact Score: 4.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 8.2

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

Impact Score: 4.2

Exploitability Score: 3.9

Severity: HIGH