2021-36121 | Echo ShareCare FileUpload_Upd.cfm pathname traversal (ATREDIS-2021-0001)

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.45

A vulnerability classified as critical has been found in Echo ShareCare 8.15.5. Affected is an unknown functionality of the file Access/DownloadFeed_Mnt/FileUpload_Upd.cfm. The manipulation of the argument name1 with an unknown input leads to a directory traversal vulnerability. CWE is classifying the issue as CWE-21. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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 AUTHORITYSYSTEM).

The weakness was disclosed 07/13/2021 as ATREDIS-2021-0001. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-36121 since 07/02/2021. The exploitability is told to be easy. It is possible to launch the attack remotely. The successful exploitation needs a authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/16/2021).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Name

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Directory traversal
CWE: CWE-21
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

07/02/2021 CVE assigned
07/13/2021 +11 days Advisory disclosed
07/13/2021 +0 days VulDB entry created
07/16/2021 +3 days VulDB last updateAdvisory: ATREDIS-2021-0001
Status: Not defined

CVE: CVE-2021-36121 (🔒)

Created: 07/13/2021 18:43
Updated: 07/16/2021 13:18
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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