Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-41773 First vendor Publication 2021-10-05
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41773

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Application 3
Os 2

Metasploit Database

id Description
2021-05-10 Apache 2.4.49/2.4.50 Traversal RCE scanner
2021-05-10 Apache 2.4.49/2.4.50 Traversal RCE

Sources (Detail)

https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb2...
https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c...
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6c...
https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2e...
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
Source Url
CISCO https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...
CONFIRM https://security.netapp.com/advisory/ntap-20211029-0009/
GENTOO https://security.gentoo.org/glsa/202208-20
MISC http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Tr...
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Tr...
http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Re...
http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-...
https://httpd.apache.org/security/vulnerabilities_24.html
https://www.oracle.com/security-alerts/cpujan2022.html
MLIST http://www.openwall.com/lists/oss-security/2021/10/05/2
http://www.openwall.com/lists/oss-security/2021/10/07/1
http://www.openwall.com/lists/oss-security/2021/10/07/6
http://www.openwall.com/lists/oss-security/2021/10/08/1
http://www.openwall.com/lists/oss-security/2021/10/08/2
http://www.openwall.com/lists/oss-security/2021/10/08/3
http://www.openwall.com/lists/oss-security/2021/10/08/4
http://www.openwall.com/lists/oss-security/2021/10/08/5
http://www.openwall.com/lists/oss-security/2021/10/08/6
http://www.openwall.com/lists/oss-security/2021/10/09/1
http://www.openwall.com/lists/oss-security/2021/10/11/4
http://www.openwall.com/lists/oss-security/2021/10/15/3
http://www.openwall.com/lists/oss-security/2021/10/16/1

Alert History

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Date Informations
2023-11-07 21:33:49
  • Multiple Updates
2022-10-28 21:27:49
  • Multiple Updates
2022-08-15 17:27:47
  • Multiple Updates
2022-03-25 21:23:25
  • Multiple Updates
2022-02-07 21:23:11
  • Multiple Updates
2021-12-01 00:23:13
  • Multiple Updates
2021-11-11 21:23:05
  • Multiple Updates
2021-10-29 17:23:07
  • Multiple Updates
2021-10-26 00:23:06
  • Multiple Updates
2021-10-22 21:22:55
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2021-10-16 13:23:02
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2021-10-16 01:47:20
  • Multiple Updates
2021-10-16 01:47:12
  • Multiple Updates
2021-10-16 00:23:01
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2021-10-15 09:22:57
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2021-10-13 09:23:04
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2021-10-12 21:23:14
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2021-10-11 21:23:13
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2021-10-11 17:22:54
  • Multiple Updates
2021-10-10 01:46:42
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2021-10-10 01:46:40
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2021-10-10 00:22:51
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2021-10-09 12:46:16
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2021-10-09 00:22:54
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2021-10-08 21:23:13
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2021-10-08 13:22:52
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2021-10-08 05:22:50
  • Multiple Updates
2021-10-08 00:22:51
  • Multiple Updates
2021-10-07 21:23:12
  • Multiple Updates
2021-10-07 17:22:52
  • Multiple Updates
2021-10-06 21:23:16
  • Multiple Updates
2021-10-05 21:23:13
  • Multiple Updates
2021-10-05 17:22:51
  • Multiple Updates
2021-10-05 13:22:51
  • First insertion