CVE-2021-30121— (Semi-)Authenticated local file inclusion in Kaseya VSA < v9.5.6
Quick assessment
Affected
n/a n/a
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Kaseya VSA是美国Kaseya公司的托管服务提供商 (MSP) 常用来管理客户网络的RMM（远程监控和管理）软件。 Kaseya VSA 存在代码注入漏洞，该漏洞源于Kaseya VSA在9.5.6之前版本存在本地文件包含。
Possible ATT&CK Techniques 1 AI
T1005 · Data from Local System
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I. Basic Information for CVE-2021-30121
Vulnerability Information
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Vulnerability Title
(Semi-)Authenticated local file inclusion in Kaseya VSA < v9.5.6
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Kaseya VSA 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kaseya VSA是美国Kaseya公司的托管服务提供商 (MSP) 常用来管理客户网络的RMM（远程监控和管理）软件。 Kaseya VSA 存在代码注入漏洞，该漏洞源于Kaseya VSA在9.5.6之前版本存在本地文件包含。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2021-30121
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-30121 (3)
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https://csirt.divd.nl/DIVD-2021-00011 x_refsource_CONFIRM
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https://csirt.divd.nl/CVE-2021-30121 x_refsource_CONFIRM
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https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ x_refsource_CONFIRM
Same Patch Batch · n/a · 2021-07-09 · 48 CVEs total
| CVE-2021-30116 | 10.0 CRITICAL | Unauthenticated credential leak and business logic flaw in Kaseya VSA <= v9.5.6 |
| CVE-2021-30120 | 9.9 CRITICAL | 2FA bypass in Kaseya VSA <= v9.5.6 |
| CVE-2021-30118 | 9.8 CRITICAL | Unauthenticated Remote Code Execution in Kaseya VSA < v9.5.5 |
| CVE-2021-30117 | 9.8 CRITICAL | Authenticated SQL injection in Kaseya VSA < v9.5.6 |
| CVE-2021-23405 | 8.3 HIGH | SQL Injection |
| CVE-2021-30201 | 7.5 HIGH | Unauthenticated XML External Entity vulnerability in Kaseya VSA < v9.5.6 |
| CVE-2021-30119 | 5.4 MEDIUM | Authenticated Authenticated reflective XSS in Kaseya VSA <= v9.5.6 |
| CVE-2020-25877 | Blackcat Cms 跨站脚本漏洞 | |
| CVE-2021-33795 | Foxit Reader和Foxit PhantomPDF 安全漏洞 | |
| CVE-2020-25875 | Codoforum 跨站脚本漏洞 | |
| CVE-2020-25876 | Codoforum 跨站脚本漏洞 | |
| CVE-2020-25394 | moziloCMS 跨站脚本漏洞 | |
| CVE-2020-35987 | Rukovoditel 跨站脚本漏洞 | |
| CVE-2021-35358 | Dotcms dotCMS 跨站脚本漏洞 | |
| CVE-2021-35361 | Dotcms dotCMS 跨站脚本漏洞 | |
| CVE-2021-35360 | Dotcms dotCMS 跨站脚本漏洞 | |
| CVE-2021-36371 | Emissary-Ingress 信任管理问题漏洞 | |
| CVE-2021-33214 | Hms Networks eCatcher 安全漏洞 | |
| CVE-2021-33792 | Foxit Reader 和 Foxit PhantomPDF 缓冲区错误漏洞 | |
| CVE-2021-27038 | Autodesk Design Review 安全漏洞 |
Showing top 20 of 48 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-30121
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