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CVE

CVE-2021-42013

It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient.
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CVE

CVE-2021-42013

It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient.

It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient. 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 only affects Apache 2.4.49 and Apache 2.4.50 and not earlier versions.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

, https://www.cisa.gov/known-exploited-vulnerabilities-catalog?fieldcve=CVE-2021-42013, http://packetstormsecurity.com/files/165089/Apache-HTTP-Server-2.4.50-CVE-2021-42013-Exploitation.html, http://www.openwall.com/lists/oss-security/2021/10/08/5, http://www.openwall.com/lists/oss-security/2021/10/08/2, http://www.openwall.com/lists/oss-security/2021/10/08/6, http://www.openwall.com/lists/oss-security/2021/10/15/3, https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ, http://www.openwall.com/lists/oss-security/2021/10/07/6, http://www.openwall.com/lists/oss-security/2021/10/09/1, https://httpd.apache.org/security/vulnerabilities24.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/, https://security.gentoo.org/glsa/202208-20, http://www.openwall.com/lists/oss-security/2021/10/16/1, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/, http://www.openwall.com/lists/oss-security/2021/10/08/1, http://www.openwall.com/lists/oss-security/2021/10/08/3, http://www.openwall.com/lists/oss-security/2021/10/11/4, https://security.netapp.com/advisory/ntap-20211029-0009/, http://www.openwall.com/lists/oss-security/2021/10/08/4, http://jvn.jp/en/jp/JVN51106450/index.html, https://www.oracle.com/security-alerts/cpujan2022.html, https://www.oracle.com/security-alerts/cpuapr2022.html, https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E, https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E, https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E, http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html, http://packetstormsecurity.com/files/164609/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html, http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html, http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html, http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html, https://www.povilaika.com/apache-2-4-50-exploit/

Severity

9.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.8
EPSS Probability
0.9441%
EPSS Percentile
0.99977%
Introduced Version
0
Fix Available
2.4.51-1,2.4.51-r0,1:2.4.51-1.94.amzn1,0:2.4.51-1.94.amzn1,0:2.4.51-1.amzn2,1:2.4.51-1.amzn2

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