Auth bypass in Microsoft Windows
CVE-2021-28821
The Windows Installation component of TIBCO Software Inc.'s TIBCO Enterprise Message Service, TIBCO Enterprise Message Service - Community Edition, and TIBCO Enterprise Message Service - Developer Edition contains a vulnerability that theoretically allows a low privileged attacker with local access on some versions of the Windows operating system to insert malicious software. The affected component can be abused to execute the malicious software inserted by the attacker with the elevated privileges of the component. This vulnerability results from a lack of access restrictions on certain files and/or folders in the installation. Affected releases are TIBCO Software Inc.'s TIBCO Enterprise Message Service: versions 8.5.1 and below, TIBCO Enterprise Message Service - Community Edition: versions 8.5.1 and below, and TIBCO Enterprise Message Service - Developer Edition: versions 8.5.1 and below.
Vulnerability class: Broken Access Control
EPSS: 0.002 (12.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Microsoft Windows
- Tibco Enterprise_message_service
- Tibco Software Inc. Enterprise Message Service — versions unspecified
- Tibco Software Inc. Enterprise Message Service - Community Edition — versions unspecified
- Tibco Software Inc. Enterprise Message Service - Developer Edition — versions unspecified
Weakness classification (CWE)
References
- security@tibco.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-28821?
- CVE-2021-28821 is a high-severity vulnerability in Microsoft Windows, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2021-03-23.
- How severe is CVE-2021-28821?
- High severity. CVSS v3 base score is 8.8 out of 10.