CVE-2018-20753 is a vulnerability in Kaseya Virtual System Administrator
Published on February 5, 2019
Kaseya VSA RMM before R9.3 9.3.0.35, R9.4 before 9.4.0.36, and R9.5 before 9.5.0.5 allows unprivileged remote attackers to execute PowerShell payloads on all managed devices. In January 2018, attackers actively exploited this vulnerability in the wild.
Known Exploited Vulnerability
This Kaseya VSA Remote Code Execution Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Kaseya VSA RMM allows unprivileged remote attackers to execute PowerShell payloads on all managed devices.
The following remediation steps are recommended / required by May 4, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2018-20753 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Products Associated with CVE-2018-20753
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Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.