CVE-2024-43402

{"id": "CVE-2024-43402", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.0}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.4}]}, "published": "2024-09-04T16:15:06.640", "references": [{"url": "https://blog.rust-lang.org/2024/04/09/cve-2024-24576.html", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/rust-lang/rust/security/advisories/GHSA-2xg3-7mm6-98jj", "tags": ["Mitigation", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://learn.microsoft.com/en-us/troubleshoot/windows-client/shell-experience/file-folder-name-whitespace-characters", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-88"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-78"}, {"lang": "en", "value": "CWE-88"}]}], "descriptions": [{"lang": "en", "value": "Rust is a programming language. The fix for CVE-2024-24576, where `std::process::Command` incorrectly escaped arguments when invoking batch files on Windows, was incomplete. Prior to Rust version 1.81.0, it was possible to bypass the fix when the batch file name had trailing whitespace or periods (which are ignored and stripped by Windows). To determine whether to apply the `cmd.exe` escaping rules, the original fix for the vulnerability checked whether the command name ended with `.bat` or `.cmd`. At the time that seemed enough, as we refuse to invoke batch scripts with no file extension. Windows removes trailing whitespace and periods when parsing file paths. For example, `.bat. .` is interpreted by Windows as `.bat`, but the original fix didn't check for that. Affected users who are using Rust 1.77.2 or greater can remove the trailing whitespace (ASCII 0x20) and trailing periods (ASCII 0x2E) from the batch file name to bypass the incomplete fix and enable the mitigations. Users are affected if their code or one of their dependencies invoke a batch script on Windows with trailing whitespace or trailing periods in the name, and pass untrusted arguments to it. Rust 1.81.0 will update the standard library to apply the CVE-2024-24576 mitigations to all batch files invocations, regardless of the trailing chars in the file name."}, {"lang": "es", "value": "Rust es un lenguaje de programaci\u00f3n. La correcci\u00f3n para CVE-2024-24576, donde `std::process::Command` escapaba incorrectamente los argumentos al invocar archivos por lotes en Windows, estaba incompleta. Antes de la versi\u00f3n 1.81.0 de Rust, era posible omitir la correcci\u00f3n cuando el nombre del archivo por lotes ten\u00eda espacios en blanco o endpoints (que Windows ignora y elimina). Para determinar si se deb\u00edan aplicar las reglas de escape de `cmd.exe`, la correcci\u00f3n original para la vulnerabilidad verificaba si el nombre del comando terminaba con `.bat` o `.cmd`. En ese momento, eso parec\u00eda suficiente, ya que nos negamos a invocar scripts por lotes sin extensi\u00f3n de archivo. Windows elimina los espacios en blanco y los endpoints al analizar las rutas de archivo. Por ejemplo, `.bat. .` es interpretado por Windows como `.bat`, pero la correcci\u00f3n original no lo verificaba. Los usuarios afectados que utilicen Rust 1.77.2 o una versi\u00f3n posterior pueden eliminar los espacios en blanco finales (ASCII 0x20) y los endpoints (ASCII 0x2E) del nombre del archivo por lotes para omitir la correcci\u00f3n incompleta y habilitar las mitigaciones. Los usuarios se ven afectados si su c\u00f3digo o una de sus dependencias invocan un script por lotes en Windows con espacios en blanco finales o endpoints en el nombre y le pasan argumentos no confiables. Rust 1.81.0 actualizar\u00e1 la librer\u00eda est\u00e1ndar para aplicar las mitigaciones de CVE-2024-24576 a todas las invocaciones de archivos por lotes, independientemente de los caracteres finales en el nombre del archivo."}], "lastModified": "2024-10-01T15:12:09.593", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "34402E85-D9FC-4FCC-9849-01810AD73232", "versionEndExcluding": "1.81.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}