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jvnJapan Vulnerability NotesJVN:51106450
HistoryOct 08, 2021 - 12:00 a.m.

JVN#51106450: Apache HTTP Server vulnerable to directory traversal

2021-10-0800:00:00
Japan Vulnerability Notes
jvn.jp
41
apache http server
directory traversal
remote attacker
cgi scripts
update software
affected products
cve-2021-41773

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.975

Percentile

100.0%

JSON

Apache HTTP Server provided by The Apache Software Foundation contains a directory traversal vulnerability (CWE-22).

Impact

A remote attacker may access the unprotected files in β€œrequire all denied” placed outside of the document root.
Moreover, if CGI scripts are enabled, arbitrary code may be executed.

Solution

Update the Software
Update to the latest version according to the information provided by the developer.

Products Affected

  • Apache HTTP Server 2.4.49 and 2.4.50
    According to the developer, the issue is caused by insufficient fix for CVE-2021-41773.

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CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.975

Percentile

100.0%

JSON
Related for JVN:51106450
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