CVE-2023-3545

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-3545", "assignerOrgId": "b1571b85-cbc9-431f-830b-0c8155323a69", "state": "PUBLISHED", "assignerShortName": "STAR_Labs", "dateReserved": "2023-07-07T13:10:48.745Z", "datePublished": "2023-11-28T07:07:27.183Z", "dateUpdated": "2024-08-02T07:01:57.437Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "platforms": ["Windows"], "product": "Chamilo", "repo": "https://github.com/chamilo/chamilo-lms/", "vendor": "Chamilo", "versions": [{"lessThanOrEqual": "1.11.20", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Ngo Wei Lin (@Creastery) of STAR Labs SG Pte. Ltd. (@starlabs_sg)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Improper sanitisation in `main/inc/lib/fileUpload.lib.php` in Chamilo LMS &lt;= v1.11.20 on Windows and Apache installations allows unauthenticated attackers to bypass file upload security protections and obtain remote code execution via uploading of `.htaccess` file. This vulnerability may be exploited by privileged attackers or chained with unauthenticated arbitrary file write vulnerabilities, such as CVE-2023-3533, to achieve remote code execution."}], "value": "Improper sanitisation in `main/inc/lib/fileUpload.lib.php` in Chamilo LMS <= v1.11.20 on Windows and Apache installations allows unauthenticated attackers to bypass file upload security protections and obtain remote code execution via uploading of `.htaccess` file. This vulnerability may be exploited by privileged attackers or chained with unauthenticated arbitrary file write vulnerabilities, such as CVE-2023-3533, to achieve remote code execution."}], "impacts": [{"capecId": "CAPEC-650", "descriptions": [{"lang": "en", "value": "CAPEC-650 Upload a Web Shell to a Web Server"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-178", "description": "CWE-178 Improper Handling of Case Sensitivity", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "b1571b85-cbc9-431f-830b-0c8155323a69", "shortName": "STAR_Labs", "dateUpdated": "2023-11-28T07:07:27.183Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-125-2023-07-13-Critical-impact-Moderate-risk-Htaccess-File-Upload-Security-Bypass-on-Windows-CVE-2023-3545"}, {"tags": ["third-party-advisory"], "url": "https://starlabs.sg/advisories/23/23-3545/"}, {"tags": ["patch"], "url": "https://github.com/chamilo/chamilo-lms/commit/dc7bfce429fbd843a95a57c184b6992c4d709549"}], "source": {"discovery": "UNKNOWN"}, "title": "Chamilo LMS Htaccess File Upload Security Bypass", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:01:57.437Z"}, "title": "CVE Program Container", "references": [{"tags": ["vendor-advisory", "x_transferred"], "url": "https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-125-2023-07-13-Critical-impact-Moderate-risk-Htaccess-File-Upload-Security-Bypass-on-Windows-CVE-2023-3545"}, {"tags": ["third-party-advisory", "x_transferred"], "url": "https://starlabs.sg/advisories/23/23-3545/"}, {"tags": ["patch", "x_transferred"], "url": "https://github.com/chamilo/chamilo-lms/commit/dc7bfce429fbd843a95a57c184b6992c4d709549"}]}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["Windows"], "product": "Chamilo", "repo": "https://github.com/chamilo/chamilo-lms/", "vendor": "Chamilo", "versions": [{"lessThanOrEqual": "1.11.20", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "info@starlabs.sg"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:chamilo:chamilo:*:*:*:*:*:*:*:*", "matchCriteriaId": "FF883FF3-A05D-4939-9777-9FCC16A9AFBB", "versionEndIncluding": "1.11.20", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper sanitisation in `main/inc/lib/fileUpload.lib.php` in Chamilo LMS <= v1.11.20 on Windows and Apache installations allows unauthenticated attackers to bypass file upload security protections and obtain remote code execution via uploading of `.htaccess` file. This vulnerability may be exploited by privileged attackers or chained with unauthenticated arbitrary file write vulnerabilities, such as CVE-2023-3533, to achieve remote code execution."}, {"lang": "es", "value": "La sanitizaci\u00f3n inadecuada en `main/inc/lib/fileUpload.lib.php` en Chamilo LMS en versiones &lt;= 1.11.20 en instalaciones de Windows y Apache permite a atacantes no autenticados eludir las protecciones de seguridad de carga de archivos y obtener la ejecuci\u00f3n remota de c\u00f3digo mediante la carga de archivo `.htaccess`. Esta vulnerabilidad puede ser aprovechada por atacantes privilegiados o encadenada con vulnerabilidades de escritura de archivos arbitrarios no autenticados, como CVE-2023-3533, para lograr la ejecuci\u00f3n remota de c\u00f3digo."}], "id": "CVE-2023-3545", "lastModified": "2026-06-17T06:14:19.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "info@starlabs.sg", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-11-28T07:15:42.913", "references": [{"source": "info@starlabs.sg", "tags": ["Patch"], "url": "https://github.com/chamilo/chamilo-lms/commit/dc7bfce429fbd843a95a57c184b6992c4d709549"}, {"source": "info@starlabs.sg", "tags": ["Exploit", "Third Party Advisory"], "url": "https://starlabs.sg/advisories/23/23-3545/"}, {"source": "info@starlabs.sg", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-125-2023-07-13-Critical-impact-Moderate-risk-Htaccess-File-Upload-Security-Bypass-on-Windows-CVE-2023-3545"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/chamilo/chamilo-lms/commit/dc7bfce429fbd843a95a57c184b6992c4d709549"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://starlabs.sg/advisories/23/23-3545/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-125-2023-07-13-Critical-impact-Moderate-risk-Htaccess-File-Upload-Security-Bypass-on-Windows-CVE-2023-3545"}], "sourceIdentifier": "info@starlabs.sg", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-178"}], "source": "info@starlabs.sg", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-178"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}