by Kastro
Paper/Archive/CVE-2023-3545

CVE-2023-3545

Chamilo Chamilo — Chamilo LMS Htaccess File Upload Security Bypass

EPSS 2%CVSS 9.8
critical.is priorityof 100
46
CVSS 9.8 (CNA, NVD agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 84.3.843 × 2016.9No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Chamilo≤ 1.11.20–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
STAR_Labs (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

advisorysupport.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-2023-3545writeupstarlabs.sg/advisories/23/23-3545patchgithub.com/chamilo/chamilo-lms/commit/dc7bfce429fbd843a95a57c184b6992c4d709549