info: name: Apache HTTP Server - HTTP Request Smuggling author: pszyszkowski severity: critical description: | Apache HTTP Server versions 2.4.0 through 2.4.55 contain a HTTP Request Smuggling caused by vulnerable mod_proxy configurations with RewriteRule or ProxyPassMatch that match user-supplied URL data and re-insert it into proxied requests, letting attackers bypass access controls, proxy unintended URLs, and poison caches, exploit requires specific configuration with variable substitution. remediation: | Users are recommended to update to at least version 2.4.56 of Apache HTTP Server. reference: - https://github.com/oOCyginXOo/CVE-2023-25690-POC - https://nvd.nist.gov/vuln/detail/cve-2023-25690 classification: cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H cvss-score: 9.8 cve-id: CVE-2023-25690 cwe-id: CWE-444 cpe: cpe:2.3:a:apache:http_server metadata: verified: true max-request: 3 vendor: apache product: http_server shodan-query: - cpe:"cpe:2.3:a:apache:http_server" tags: cve2023,cve,apache,smuggling