CVE-2023-25690
Scores
EPSS
Percentile: 68.2%
CVSS
CVSS Score: 9.8/10
All CVSS Scores
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Unchanged (U)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
High (H)
Measures the impact to the confidentiality of information
Integrity Impact
High (H)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
High (H)
Measures the impact to the availability of the impacted component
Description
Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack.
Configurations are affected when mod_proxy is enabled along with some form of RewriteRule
or ProxyPassMatch in which a non-specific pattern matches
some portion of the user-supplied request-target (URL) data and is then
re-inserted into the proxied request-target using variable
substitution. For example, something like:
RewriteEngine on
RewriteRule “^/here/(.*)” “http://example.com:8080/elsewhere?$1”; [P]
ProxyPassReverse /here/ http://example.com:8080/
Request splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version 2.4.56 of Apache HTTP Server.
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Sources
CWEs
Related Vulnerabilities
Exploits
Vulnerable Software (62)
Type: Configuration
Operating System:
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.4.56", "versionStartIncluding...
{ "children": [ { "cpe_match": [ { "cpe23uri": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.4.56", "versionStartIncluding": "2.4.0" } ], "negate": false, "operator": "OR" } ], "operator": "OR"}
Source: anchore_overrides
Type: Configuration
Product: apache2
Operating System: altlinux
{ "fixed": "1:2.4.56-alt1"}
Source: redhat
Type: Configuration
Product: apache2
Operating System: astra 1.7.4.7
{ "unaffected": true}
Source: astra
Type: Configuration
Product: apache2
Operating System: astra 4.7.4
{ "unaffected": true}
Source: astra
Type: Configuration
Product: apache2
Operating System: ubuntu bionic 18.04
{ "fixed": "2.4.29-1ubuntu4.27"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu focal 20.04
{ "fixed": "2.4.41-4ubuntu3.14"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu jammy 22.04
{ "fixed": "2.4.52-1ubuntu4.4"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu kinetic 22.10
{ "fixed": "2.4.54-2ubuntu1.2"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu lunar 23.04
{ "fixed": "2.4.55-1ubuntu2"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu mantic 23.10
{ "fixed": "2.4.55-1ubuntu2"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu noble 24.04
{ "fixed": "2.4.55-1ubuntu2"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu oracular 24.10
{ "fixed": "2.4.55-1ubuntu2"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu plucky 25.04
{ "fixed": "2.4.55-1ubuntu2"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu questing 25.10
{ "fixed": "2.4.55-1ubuntu2"}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu trusty 14.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu xenial 16.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: debian
{ "fixed": "2.4.56-1"}
Source: debian
Type: Configuration
Product: apache2-ab
Operating System: altlinux
{ "fixed": "1:2.4.56-alt1"}
Source: redhat
Type: Configuration
Product: apache2-base
Operating System: altlinux
{ "fixed": "1:2.4.56-alt1"}
Source: redhat
Type: Configuration
Product: apache2-cgi-bin
Operating System: altlinux
{ "fixed": "1:2.4.56-alt1"}
Source: redhat