TIBCO Security Advisory: April 14, 2021 - TIBCO Messaging - Eclipse MosquittoDistribution -2021-28826

TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge Windows Platform Installation vulnerability

Original releasedate: April 14, 2021
Last revised:
CVE-2021-28826
Source: TIBCO Software Inc.

Products Affected

TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Community
Edition versions 1.3.0 and below

TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Enterprise
Edition versions 1.3.0 and below

The following component is affected:

• Windows Installation

Description

The component listed above 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.

Impact

The impact of this vulnerability includes the possibility of an attacker
gaining full access to the Windows operating system at the privilege level of
the affected component.

CVSS v3 Base Score: 8.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)

Solution

TIBCO has released updated versions of the affected systems which address this
issue:

TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Community
Edition versions 1.3.0 and below update to version 2.0.7 or higher

TIBCO Messaging - Eclipse Mosquitto Distribution - Bridge - Enterprise
Edition versions 1.3.0 and below update to version 2.0.7 or higher

Acknowledgments

TIBCO would like to extend its appreciation to Will Dormann of CERT/CC for
discovery of this vulnerability.

References

http://www.tibco.com/services/support/advisories
CVE-2021-28826

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