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akamaiblogAssaf Vilmovsky & Maxim ZavodchikAKAMAIBLOG:72129348AFF386C88DD2D4145C64F678
HistoryOct 07, 2021 - 8:15 p.m.

Mitigating CVE-2021-41773: Apache HTTP Server Path Traversal

2021-10-0720:15:00
Assaf Vilmovsky & Maxim Zavodchik
www.akamai.com
65

7.5 High

CVSS3

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.975 High

EPSS

Percentile

100.0%

JSON

On September 29, Ash Daulton, along with the cPanel Security Team, reported a path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.29 to the Apache security team. The issue was fixed within two days, under CVE-2021-41773, and the patch was released on October 4. Apache urged to deploy the fix, as it is already being actively exploited.

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7.5 High

CVSS3

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.975 High

EPSS

Percentile

100.0%

JSON
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