CVE-2018-20753
Kaseya VSA Remote Code Execution Vulnerability - [Actively Exploited]
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.
INFO
Published Date :
Feb. 5, 2019, 6:29 a.m.
Last Modified :
March 14, 2025, 6:24 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Kaseya VSA RMM allows unprivileged remote attackers to execute PowerShell payloads on all managed devices.
Apply updates per vendor instructions.
https://nvd.nist.gov/vuln/detail/CVE-2018-20753
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Public PoC/Exploit Available at Github
CVE-2018-20753 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-20753.
| URL | Resource |
|---|---|
| https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88 | Exploit Third Party Advisory |
| https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152 | Vendor Advisory |
| https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88 | Exploit Third Party Advisory |
| https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-20753 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-20753
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-20753 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-20753 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Mar. 14, 2025
Action Type Old Value New Value -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 04, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
Modified Analysis by [email protected]
Jan. 27, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88 Added Reference https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-264 NVD-CWE-noinfo -
Initial Analysis by [email protected]
Feb. 21, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152 No Types Assigned https://helpdesk.kaseya.com/hc/en-gb/articles/360000333152 Vendor Advisory Changed Reference Type https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88 No Types Assigned https://blog.huntresslabs.com/deep-dive-kaseya-vsa-mining-payload-c0ac839a0e88 Exploit, Third Party Advisory Added CWE CWE-264 Added CPE Configuration OR *cpe:2.3:a:kaseya:virtual_system_administrator:*:*:*:*:*:*:*:* versions from (including) 9.3 up to (excluding) 9.3.0.35 *cpe:2.3:a:kaseya:virtual_system_administrator:*:*:*:*:*:*:*:* versions from (including) 9.4 up to (excluding) 9.4.0.36 *cpe:2.3:a:kaseya:virtual_system_administrator:*:*:*:*:*:*:*:* versions from (including) 9.5 up to (excluding) 9.5.0.5
Vulnerability Scoring Details
Base CVSS Score: 9.8
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
37.23 }} -0.56%
score
0.96931
percentile