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cve[email protected]CVE-2021-41773
HistoryOct 05, 2021 - 9:15 a.m.

CVE-2021-41773

2021-10-0509:15:07
CWE-22
[email protected]
web.nvd.nist.gov
1788
In Wild
13
29
cve-2021-41773
apache http server
path traversal
remote code execution
security vulnerability
cve-2021-42013

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

8

Confidence

High

EPSS

0.975

Percentile

100.0%

JSON

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.

Affected configurations

Vulners
NVD
Node
apache_software_foundationapache_strutsRange≤2.4
OR
apache_software_foundationapache_strutsRange≤2.4.49
VendorProductVersionCPE
apachehttp_server2.4.49cpe:/a:apache:http_server:2.4.49:::

CNA Affected

[
  {
    "product": "Apache HTTP Server",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "status": "affected",
        "version": "Apache HTTP Server 2.4 2.4.49"
      }
    ]
  }
]

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CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

8

Confidence

High

EPSS

0.975

Percentile

100.0%

JSON
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