CVE-2021-36121

CVSS V2 Medium 6.5 CVSS V3 High 8.8
Description
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).
Overview
  • CVE ID
  • CVE-2021-36121
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-07-13T14:15:08
  • Last Modified Date
  • 2021-07-15T14:13:03
Weakness Enumerations
CWE URL
CWE-434 http://cwe.mitre.org/data/definitions/434.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:echobh:sharecare:8.15.5:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2021-0001.md Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-36121
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36121
History
Created Old Value New Value Data Type Notes
2022-05-10 07:07:14 Added to TrackCVE
2022-12-05 05:59:15 2021-07-13T14:15Z 2021-07-13T14:15:08 CVE Published Date updated
2022-12-05 05:59:15 2021-07-15T14:13:03 CVE Modified Date updated
2022-12-05 05:59:15 Analyzed Vulnerability Status updated