CVE-2021-30121
Kaseya Webserver Unauthenticated Local File Inclusion
Description
Semi-authenticated local file inclusion The contents of arbitrary files can be returned by the webserver Example request: `https://x.x.x.x/KLC/js/Kaseya.SB.JS/js.aspx?path=C:\Kaseya\WebPages\dl.asp` A valid sessionId is required but can be easily obtained via CVE-2021-30118
INFO
Published Date :
July 9, 2021, 2:15 p.m.
Last Modified :
Nov. 21, 2024, 6:03 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
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-2021-30121.
| URL | Resource |
|---|---|
| https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ | Patch Third Party Advisory |
| https://csirt.divd.nl/CVE-2021-30121 | Exploit Third Party Advisory |
| https://csirt.divd.nl/DIVD-2021-00011 | Patch Third Party Advisory |
| https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ | Patch Third Party Advisory |
| https://csirt.divd.nl/CVE-2021-30121 | Exploit Third Party Advisory |
| https://csirt.divd.nl/DIVD-2021-00011 | Patch Third Party 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-2021-30121 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-2021-30121
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-30121 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-30121 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.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ Added Reference https://csirt.divd.nl/CVE-2021-30121 Added Reference https://csirt.divd.nl/DIVD-2021-00011 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Apr. 29, 2022
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N) Removed CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ Third Party Advisory https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ Patch, Third Party Advisory Changed Reference Type https://csirt.divd.nl/CVE-2021-30121 Third Party Advisory https://csirt.divd.nl/CVE-2021-30121 Exploit, Third Party Advisory Changed Reference Type https://csirt.divd.nl/DIVD-2021-00011 Third Party Advisory https://csirt.divd.nl/DIVD-2021-00011 Patch, Third Party Advisory -
CVE Modified by [email protected]
Apr. 04, 2022
Action Type Old Value New Value Changed Description Authenticated local file inclusion in Kaseya VSA < v9.5.6 Semi-authenticated local file inclusion The contents of arbitrary files can be returned by the webserver Example request: `https://x.x.x.x/KLC/js/Kaseya.SB.JS/js.aspx?path=C:\Kaseya\WebPages\dl.asp` A valid sessionId is required but can be easily obtained via CVE-2021-30118 -
Modified Analysis by [email protected]
Mar. 24, 2022
Action Type Old Value New Value Changed Reference Type https://csirt.divd.nl/CVE-2021-30121 No Types Assigned https://csirt.divd.nl/CVE-2021-30121 Third Party Advisory Changed Reference Type https://csirt.divd.nl/DIVD-2021-00011 No Types Assigned https://csirt.divd.nl/DIVD-2021-00011 Third Party Advisory -
CVE Modified by [email protected]
Feb. 07, 2022
Action Type Old Value New Value Changed Description Local file inclusion exists in Kaseya VSA before 9.5.6. Authenticated local file inclusion in Kaseya VSA < v9.5.6 Added CVSS V3.1 MITRE AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added Reference https://csirt.divd.nl/CVE-2021-30121 [No Types Assigned] Added Reference https://csirt.divd.nl/DIVD-2021-00011 [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 12, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ No Types Assigned https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ Third Party Advisory Added CWE NIST CWE-829 Added CPE Configuration OR *cpe:2.3:a:kaseya:vsa:*:*:*:*:-:*:*:* versions up to (excluding) 9.5.6
Vulnerability Scoring Details
Base CVSS Score: 6.5
Base CVSS Score: 4
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.25 }} -0.01%
score
0.47989
percentile