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CVE-2021-21327— Unsafe Reflection in getItemForItemtype()

Quick assessment

Affected
glpi-project glpi
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GLPI是个人开发者的一款开源IT和资产管理软件。该软件提供功能全面的IT资源管理接口，你可以用它来建立数据库全面管理IT的电脑，显示器，服务器，打印机，网络设备，电话，甚至硒鼓和墨盒等。 GLPI before version 9.5.4 存在安全漏洞，该漏洞源于未经身份验证的用户可以远程实例化GLPI环境中存在的任何类的对象，这些类可用于执行恶意攻击，或启动POP链。

CVSS 6.8 · Medium EPSS 2.25% · P82
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I. Basic Information for CVE-2021-21327

Vulnerability Information
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Vulnerability Title
Unsafe Reflection in getItemForItemtype()
Source: CVE Program / CVE List V5
Vulnerability Description
GLPI is an open-source asset and IT management software package that provides ITIL Service Desk features, licenses tracking and software auditing. In GLPI before version 9.5.4 non-authenticated user can remotely instantiate object of any class existing in the GLPI environment that can be used to carry out malicious attacks, or to start a “POP chain”. As an example of direct impact, this vulnerability affects integrity of the GLPI core platform and third-party plugins runtime misusing classes which implement some sensitive operations in their constructors or destructors. This is fixed in version 9.5.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
GLPI 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GLPI是个人开发者的一款开源IT和资产管理软件。该软件提供功能全面的IT资源管理接口，你可以用它来建立数据库全面管理IT的电脑，显示器，服务器，打印机，网络设备，电话，甚至硒鼓和墨盒等。 GLPI before version 9.5.4 存在安全漏洞，该漏洞源于未经身份验证的用户可以远程实例化GLPI环境中存在的任何类的对象，这些类可用于执行恶意攻击，或启动POP链。
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
glpi-project glpi < 9.5.4 -

II. Public POCs for CVE-2021-21327

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III. Intelligence Information for CVE-2021-21327

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Vendor Advisories for CVE-2021-21327 (1)

Exploits & Public PoCs for CVE-2021-21327 (1)

Other References for CVE-2021-21327 (1)

Same Patch Batch · glpi-project · 2021-03-08 · 4 CVEs total

CVE-2021-21326 7.7 HIGH Horizontal Privilege Escalation
CVE-2021-21324 6.8 MEDIUM Insecure Direct Object Reference (IDOR) on "Solutions"
CVE-2021-21325 6.2 MEDIUM Stored XSS in budget type

IV. Related Vulnerabilities

Same product: glpi
Same vendor: glpi-project
Same weakness: CWE-862

V. Comments for CVE-2021-21327

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