--- cve: "CVE-2023-43655" severity: "MEDIUM" cvss: 6.4 epss: "1.4%" vendor: "composer" kev: false exploited: false published: "2023-09-29 20:15:09" tags: [cve, security, medium] source: tsecurity.de CVE-Dossier exported: "2026-09-12T03:20:47+02:00" --- # CVE-2023-43655 > 6.4 MEDIUM · 🧪 PoC ## Beschreibung Composer is a dependency manager for PHP. Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be subject to a remote code execution vulnerability if PHP also has `register_argc_argv` enabled in php.ini. Versions 2.6.4, 2.2.22 and 1.10.27 patch this vulnerability. Users are advised to upgrade. Users unable to upgrade should make sure `register_argc_argv` is disabled in php.ini, and avoid publishing composer.phar to the web as this is not best practice. ## CVSS-Vektor ``` CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H ``` | Metrik | Wert | Bewertung | |---|---|---| | AV Angriffsvektor | Netzwerk | bad | | AC Komplexität | Hoch | good | | PR Privilegien | Hoch | good | | UI Interaktion | Erforderlich | good | | S Scope | Unverändert | good | | C Vertraulichkeit | Hoch | bad | | I Integrität | Hoch | bad | | A Verfügbarkeit | Hoch | bad | ## Patch verfügbar (OSV) - f8f49191eec76f039b466aa1f161406fe43aff50 (Commit) - 978198befc71de0b18fc1fc5a472c03b184b504a (Commit) ## Referenzen - - - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-43655) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_