QID 731319

Date Published: 2024-04-11

QID 731319: Kaseya VSA Remote Code Execution (RCE) Vulnerability

CVE-2018-20753 is a critical vulnerability residing within Kaseya VSA RMM, a software application facilitating remote monitoring and management. This vulnerability grants unauthenticated remote attackers the ability to execute PowerShell payloads on all devices managed by the Kaseya VSA RMM system.

Affected Versions:
Kaseya R9.5 prior to Patch 9.5.0.5
Kaseya R9.4 prior to Patch 9.4.0.36
Kaseya R9.3 prior to Patch 9.3.0.35

Patched Versions:
Kaseya R9.5: Patch 9.5.0.5
Kaseya R9.4: Patch 9.4.0.36
Kaseya R9.3: Patch 9.3.0.35

QID Detection Logic (Unauthenticated):
This QID checks for vulnerable versions of Kaseya VSA by sending an HTTP GET request to the 'vsapres/web20/core/login.aspx' endpoint and extracting the version from the response received.

Successful exploitation of the vulnerability may allow unauthenticated attackers to remotely execute malicious code on all managed devices. This translates to potential data theft, malware deployment, operational disruption, and even ransomware attacks, making it a critical vulnerability.

CVSS V3 rated as Critical - 9.8 severity.

CVSS V2 rated as High - 7.5 severity.

Solution

Customers are advised to upgrade to the latest available version of Kaseya VSA. For more information please refer to the Kaseya Security Advisory

Vendor References

Kaseya Security Advisory - helpdesk.kaseya.com/hc/en-gb/articles/360000333152-Q1-2018-VSA-Security-Update

CVEs related to QID 731319

CVE-2018-20753 |

Software Advisories

Advisory ID	Software	Component	Link
Kaseya Security Advisory			helpdesk.kaseya.com/hc/en-gb/articles/360000333152-Q1-2018-VSA-Security-Update

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