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CVE-2021-34993

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 授权问题漏洞中存在授权问题漏洞，该漏洞的存在是由于在 CVSearchService 服务中处理身份验证请求时出错。远程攻击者可以绕过身份验证过程并获得对应用程序的未授权访问。该漏洞允许远程攻击者绕过身份验证过程。

AI Predicted 9.8 Difficulty: Easy EPSS 5.42% · P92

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-34993

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CVSearchService service. The issue results from the lack of proper validation prior to authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-13706.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Commvault CommCell 授权问题漏洞
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 授权问题漏洞中存在授权问题漏洞，该漏洞的存在是由于在 CVSearchService 服务中处理身份验证请求时出错。远程攻击者可以绕过身份验证过程并获得对应用程序的未授权访问。该漏洞允许远程攻击者绕过身份验证过程。
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-2021-34993

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III. Intelligence Information for CVE-2021-34993

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Vendor Advisories for CVE-2021-34993 (1)

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

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
CVE-2021-34997 Commvault CommCell 代码问题漏洞

IV. Related Vulnerabilities

Same product: CommCell
Same vendor: Commvault
Same weakness: CWE-287

V. Comments for CVE-2021-34993

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