Home/CVE/Semi-authenticated local file inclusion The contents of arbitrary files can be returned by the webserver Example request
CVE

CVE-2021-30121

Semi-authenticated local file inclusion The contents of arbitrary files can be returned by the webserver Example request

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.

MEDIUM · CVSS 6.5 EPSS 0.00384
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-829Inclusion of Functionality from Untrusted Control Sphere
▤

Affected Products & Versions

1
kaseya vsa< 9.5.6
⚠

Public Exploits & PoCs

1
poccsirt.divd.nl · CVE-2021-30121csirt.divd.nl
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Jul 2021 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/PatchThird Party Advisory
https://csirt.divd.nl/DIVD-2021-00011PatchThird Party Advisory
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