PT-2021-21118 · Unknown · Echo Sharecare

Nick Nam + 1 · Published 2021-07-13 · Updated 2021-07-15 · CVE-2021-36121

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Echo ShareCare version 8.15.5

Description: An issue was discovered in the file-upload feature of Echo ShareCare, specifically in the Access/DownloadFeed Mnt/FileUpload Upd.cfm file, which is susceptible to an unrestricted upload vulnerability via the name1 parameter. This vulnerability allows arbitrary files to be written to arbitrary filesystem locations via ../ Directory Traversal on the Z: drive, where ShareCare application files reside, and enables remote code execution as the ShareCare service user (NT AUTHORITYSYSTEM).

Recommendations: For Echo ShareCare version 8.15.5, consider disabling the file-upload feature in Access/DownloadFeed Mnt/FileUpload Upd.cfm as a temporary workaround to prevent exploitation. Restrict access to the name1 parameter in the file-upload feature to minimize the risk of arbitrary file uploads and remote code execution.

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2021-36121

Affected Products

Echo Sharecare

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-36121 · Security Note
• https://osv.dev/vulnerability/CVE-2021-36121 · Vendor Advisory
• https://github.com/atredispartners/advisories/blob/master/ATREDIS-2021-0001.md · Note
• https://t.me/cvenotify/17531 · Telegram Post