Improper Authentication in Rosemount X-STREAM Gas Analyzer - CVE-2020-27254

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Main Vulnerability Database Vulnerabilities #VU49108

Improper Authentication in Rosemount X-STREAM Gas Analyzer - CVE-2020-27254

Published: December 21, 2020


Vulnerability identifier: #VU49108
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-27254
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Emerson
Affected software:
Rosemount X-STREAM Gas Analyzer

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A remote attacker can bypass authentication process and access log and backup data.


How to mitigate CVE-2020-27254

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

The following versions of Emerson’s Rosemount X-STREAM gas analysis software, are affected:

  • X-STREAM enhanced XEGP – all revisions 
  • X-STREAM enhanced XEGK – all revisions 
  • X-STREAM enhanced XEFD – all revisions 
  • X-STREAM enhanced XEXF – all revisions

Sources