Vulnerability identifier: #VU51670

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28818

CWE-ID: CWE-428

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Rendezvous
Server applications / Other server solutions

Vendor: TIBCO

Description

The vulnerability allows a local user to escalate privileges on the system.

the vulnerability exists due to the application is searching for run-time artifacts outside of the installation hierarchy. A local user can place a specially crafted file on the system and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Rendezvous: 8.0.0 - 8.5.1

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External links
http://www.tibco.com/support/advisories/2021/03/tibco-security-advisory-march-23-2021-tibco-rendezvous-2021-28818

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.