CVE-2021-27198

moderate-risk

Published 2021-02-26

An issue was discovered in Visualware MyConnection Server before v11.1a. Unauthenticated Remote Code Execution can occur via Arbitrary File Upload in the web service when using a myspeed/sf?filename= URI. This application is written in Java and is thus cross-platform. The Windows installation runs as SYSTEM, which means that exploitation gives one Administrator privileges on the target system.

Do I need to act?

14.2% chance of exploitation in next 30 days

EPSS score — higher than 86% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (1)

Myconnection Server

Affected Vendors

Visualware

References (10)

Third Party Advisory http://packetstormsecurity.com/files/161571/VisualWare-MyConnection-Server-11.x-...

Mailing List http://seclists.org/fulldisclosure/2021/Feb/81

Product https://myconnectionserver.visualware.com/download.html

Release Notes https://myconnectionserver.visualware.com/support/newrelease.html

Third Party Advisory https://www.securifera.com/advisories/cve-2021-27198/

Third Party Advisory http://packetstormsecurity.com/files/161571/VisualWare-MyConnection-Server-11.x-...

Mailing List http://seclists.org/fulldisclosure/2021/Feb/81

Product https://myconnectionserver.visualware.com/download.html

Release Notes https://myconnectionserver.visualware.com/support/newrelease.html

Third Party Advisory https://www.securifera.com/advisories/cve-2021-27198/

/ 100

moderate-risk

Severity 32/34 · Critical

Exploitability 12/34 · Low

Exposure 5/34 · Minimal