Vulnerability Details : CVE-2021-30121
Potential exploit
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
Vulnerability category: File inclusion
Products affected by CVE-2021-30121
- cpe:2.3:a:kaseya:vsa:*:*:*:*:-:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-30121
0.25%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-30121
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
MITRE | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-30121
-
The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-30121
-
https://csirt.divd.nl/CVE-2021-30121
Authenticated local file inclusion in Kaseya VSA < v9.5.6 | DIVD CSIRTExploit;Third Party Advisory
-
https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/
Kaseya VSA Limited Disclosure | DIVD CSIRTPatch;Third Party Advisory
-
https://csirt.divd.nl/DIVD-2021-00011
DIVD-2021-00011 - Kaseya VSA Limited Disclosure | DIVD CSIRTPatch;Third Party Advisory
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