Vulnerability Details CVE-2021-36121
An issue was discovered in Echo ShareCare 8.15.5. The file-upload feature in Access/DownloadFeed_Mnt/FileUpload_Upd.cfm is susceptible to an unrestricted upload vulnerability via the name1 parameter, when processing remote input from an authenticated user, leading to the ability for arbitrary files to be written to arbitrary filesystem locations via ../ Directory Traversal on the Z: drive (a hard-coded drive letter where ShareCare application files reside) and remote code execution as the ShareCare service user (NT AUTHORITY\SYSTEM).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.017
EPSS Ranking 81.3%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 6.5
References