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CVE-2021-34997

Quick assessment

Affected
Commvault CommCell
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.

Commvault CommCell是美国Commvault公司的一款应用于企业环境的存储管理工具。 Commvault CommCell 中存在代码问题漏洞，该漏洞的存在是由于 AppStudioUploadHandler 类中的文件上传过程中对文件的验证不足。远程认证攻击者可以上传恶意文件并在服务器上执行。该漏洞允许远程攻击者破坏易受攻击的系统。

AI Predicted 7.8 Difficulty: Easy EPSS 4.25% · P91
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I. Basic Information for CVE-2021-34997

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Commvault CommCell 11.22.22. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the AppStudioUploadHandler class. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this vulnerability to execute code in the context of NETWORK SERVICE. Was ZDI-CAN-13894.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Commvault CommCell 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Commvault CommCell是美国Commvault公司的一款应用于企业环境的存储管理工具。 Commvault CommCell 中存在代码问题漏洞，该漏洞的存在是由于 AppStudioUploadHandler 类中的文件上传过程中对文件的验证不足。远程认证攻击者可以上传恶意文件并在服务器上执行。该漏洞允许远程攻击者破坏易受攻击的系统。
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
Commvault CommCell 11.22.22 -

II. Public POCs for CVE-2021-34997

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III. Intelligence Information for CVE-2021-34997

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Vendor Advisories for CVE-2021-34997 (1)

Same Patch Batch · Commvault · 2022-01-13 · 5 CVEs total

CVE-2021-34993 Commvault CommCell 授权问题漏洞
CVE-2021-34994 Commvault CommCell 代码注入漏洞
CVE-2021-34995 Commvault CommCell 代码问题漏洞
CVE-2021-34996 Commvault CommCell 安全漏洞

IV. Related Vulnerabilities

Same product: CommCell
Same vendor: Commvault
Same weakness: CWE-434

V. Comments for CVE-2021-34997

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