CVE-2021-41773 | Severity.io

Description

A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013.

Related CPE's

Vulnerable

o

fedoraproject

fedora

2

a

oracle

instantis_enterprisetrack

3

Vulnerable

References

http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html

ExploitThird Party AdvisoryVDB Entry

http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html

ExploitThird Party AdvisoryVDB Entry

http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html

ExploitThird Party AdvisoryVDB Entry

http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html

ExploitThird Party AdvisoryVDB Entry

http://www.openwall.com/lists/oss-security/2021/10/05/2

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/07/1

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/07/6

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/1

ExploitMailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/2

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/3

ExploitMailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/4

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/5

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/6

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/09/1

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/11/4

Mailing ListPatchThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/15/3

Mailing ListPatchThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/16/1

Mailing ListThird Party Advisory

https://httpd.apache.org/security/vulnerabilities_24.html

Release NotesVendor Advisory

https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E

Mailing ListPatch

https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f%40%3Cusers.httpd.apache.org%3E

Mailing List

https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E

Mailing List

https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45%40%3Cannounce.apache.org%3E

Mailing List

https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E

Mailing List

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/

Release Notes

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/

Release Notes

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

Third Party Advisory

https://security.netapp.com/advisory/ntap-20211029-0009/

Third Party Advisory

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ

Third Party Advisory

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

PatchThird Party Advisory

http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html

ExploitThird Party AdvisoryVDB Entry

http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html

ExploitThird Party AdvisoryVDB Entry

http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html

ExploitThird Party AdvisoryVDB Entry

http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html

ExploitThird Party AdvisoryVDB Entry

http://www.openwall.com/lists/oss-security/2021/10/05/2

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/07/1

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/07/6

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/1

ExploitMailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/2

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/3

ExploitMailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/4

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/5

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/08/6

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/09/1

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/11/4

Mailing ListPatchThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/15/3

Mailing ListPatchThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/16/1

Mailing ListThird Party Advisory

https://httpd.apache.org/security/vulnerabilities_24.html

Release NotesVendor Advisory

https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E

Mailing ListPatch

https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f%40%3Cusers.httpd.apache.org%3E

Mailing List

https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E

Mailing List

https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45%40%3Cannounce.apache.org%3E

Mailing List

https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E

Mailing List

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/

Release Notes

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/

Release Notes

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

Third Party Advisory

https://security.netapp.com/advisory/ntap-20211029-0009/

Third Party Advisory

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ

Third Party Advisory

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

PatchThird Party Advisory

Weaknesses

[email protected]

Secondary

CWE-22

[email protected]

Primary

CWE-22

CVSS impact metrics

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

7.5 · High

CVSS V3.1
CVSS V3.0
CVSS V2.0

Information

Source identifier

[email protected]

Vulnerability status

Modified

Published

2021-10-05T09:15:07.593

3 years ago

Last modified

2025-02-04T15:15:13.140

5 months ago