CVE-2021-40438

Scores

EPSS

0.944high94.4%
0%20%40%60%80%100%

Percentile: 94.4%

CVSS

9.0critical3.x
0246810

CVSS Score: 9.0/10

All CVSS Scores

CVSS 3.x
9.0

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

CVSS 2.0
6.8

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

Description

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

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Sources

astradebiannvdredhatubuntu

CWEs

CWE-918

Related Vulnerabilities

Exploits

Exploit ID: CVE-2021-40438

Source: github-poc

URL: https://github.com/n0m-d/CVE-2021-40438-POC

Vulnerable Software (78)

Type: Configuration

Product: apache2

Operating System: astra 1.7.0

Trait:
{  "unaffected": true}

Source: astra

Type: Configuration

Product: apache2

Operating System: astra 1.6.0

Trait:
{  "unaffected": true}

Source: astra

Type: Configuration

Product: apache2

Operating System: ubuntu focal 20.04

Trait:
{  "fixed": "2.4.41-4ubuntu3.6"}

Source: ubuntu

Type: Configuration

Product: apache2

Operating System: ubuntu hirsute 21.04

Trait:
{  "fixed": "2.4.46-4ubuntu1.3"}

Source: ubuntu

Type: Configuration

Product: apache2

Operating System: ubuntu impish 21.10

Trait:
{  "fixed": "2.4.48-3.1ubuntu2"}

Source: ubuntu

Type: Configuration

Product: apache2

Operating System: ubuntu jammy 22.04

Trait:
{  "fixed": "2.4.48-3.1ubuntu2"}

Source: ubuntu

Type: Configuration

Product: apache2

Operating System: ubuntu trusty 14.04

Trait:
{  "unfixed": true}

Source: ubuntu

Type: Configuration

Product: apache2

Operating System: ubuntu xenial 16.04

Trait:
{  "unfixed": true}

Source: ubuntu

Type: Configuration

Product: apache2

Operating System: astra 1.6.10

Trait:
{  "unaffected": true}

Source: astra

Type: Configuration

Product: apache2

Operating System: ubuntu bionic 18.04

Trait:
{  "fixed": "2.4.29-1ubuntu4.18"}

Source: ubuntu