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CVE-2024-51739— Users enumeration allowed through Rest API in Combodo iTop

Quick assessment

Affected
Combodo iTop
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Combodo iTop是法国Combodo公司的一套基于ITIL开发且用于IT环境日常运营的开源Web应用程序。该程序提供事件管理、配置管理和问题管理等功能。 Combodo iTop 2.7.11之前版本、3.0.5之前版本、3.1.2之前版本和3.2.0之前版本存在信息泄露漏洞，该漏洞源于未经身份验证的用户可以执行用户枚举，以便暴力破解有效帐户。

CVSS 7.5 · High EPSS 1.23% · P68

Public Exploits 1

Nuclei · 1 CVE-2024-51739.yaml [template]
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I. Basic Information for CVE-2024-51739

Vulnerability Information
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Vulnerability Title
Users enumeration allowed through Rest API in Combodo iTop
Source: CVE Program / CVE List V5
Vulnerability Description
Combodo iTop is a simple, web based IT Service Management tool. Unauthenticated user can perform users enumeration, which can make it easier to bruteforce a valid account. As a fix the sentence displayed after resetting password no longer shows if the user exists or not. This fix is included in versions 2.7.11, 3.0.5, 3.1.2, and 3.2.0. Users are advised to upgrade. Users unable to upgrade may overload the dictionary entry `"UI:ResetPwd-Error-WrongLogin"` through an extension and replace it with a generic message.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Combodo iTop 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Combodo iTop是法国Combodo公司的一套基于ITIL开发且用于IT环境日常运营的开源Web应用程序。该程序提供事件管理、配置管理和问题管理等功能。 Combodo iTop 2.7.11之前版本、3.0.5之前版本、3.1.2之前版本和3.2.0之前版本存在信息泄露漏洞，该漏洞源于未经身份验证的用户可以执行用户枚举，以便暴力破解有效帐户。
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
Combodo iTop < 2.7.11 -

II. Public POCs for CVE-2024-51739

# POC Description Source Link Shenlong Link
1 From the webservices/rest.php file, several operations are accessible from an unauthenticated user. One of them is `do_reset_pwd`, allowing to reset a user password. This feature can be abused to perform user enumeration when a non-existent user is provided. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-51739.yaml POC Details
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III. Intelligence Information for CVE-2024-51739

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Vendor Advisories for CVE-2024-51739 (1)

IV. Related Vulnerabilities

Same product: iTop
Same vendor: Combodo
Same weakness: CWE-200

V. Comments for CVE-2024-51739

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