Critical severity · published Feb 5, 2019
CVE-2018-20753
Kaseya VSA Remote Code Execution Vulnerability
RansomwareIn wildKEV
9.8
CVSS
29.6%
EPSS
Yes
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)29.6% · higher than 98% of CVEs
Exploited in the wildYes
CISA KEVListed Apr 13, 2022
Federal remediation dueMay 4, 2022
Ransomware campaign useKnown
Affected products
Which versions
VS
Virtual System Administrator · Kaseya
9.3 before 9.3.0.35; 9.4 before 9.4.0.36; 9.5 before 9.5.0.5 · source: NVD
VS
Virtual System/Server Administrator (VSA) · Kaseya
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-20753
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-20753
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88
x_refsource_MISC
https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152
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