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CVE-2021-23261— Overriding the system configuration file causes a denial of service

Quick assessment

Affected
Crafter Software Crafter CMS
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.

Crafter CMS是一套面向数字体验应用程序的开源内容管理系统（CMS）。 Crafter CMS 存在安全漏洞，该漏洞源于通过认证的管理员可能会覆盖系统配置文件。攻击者可利用该漏洞导致拒绝服务。

CVSS 4.5 · Medium EPSS 0.64% · P48

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-23261

Vulnerability Information
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Vulnerability Title
Overriding the system configuration file causes a denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
Authenticated administrators may override the system configuration file and cause a denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件检查或处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Crafter CMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Crafter CMS是一套面向数字体验应用程序的开源内容管理系统（CMS）。 Crafter CMS 存在安全漏洞，该漏洞源于通过认证的管理员可能会覆盖系统配置文件。攻击者可利用该漏洞导致拒绝服务。
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
Crafter Software Crafter CMS 3.1 ~ 3.1.13 -

II. Public POCs for CVE-2021-23261

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III. Intelligence Information for CVE-2021-23261

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Other References for CVE-2021-23261 (1)

Same Patch Batch · Crafter Software · 2021-12-02 · 7 CVEs total

CVE-2021-23264 8.1 HIGH Transmission of Private Resources into a New Sphere ('Resource Leak') and Exposure of Reso
CVE-2021-23260 6.5 MEDIUM Stored XSS Vulnerability in File Name of the File Upload function
CVE-2021-23263 5.9 MEDIUM Transmission of Private Resources into a New Sphere ('Resource Leak') in Crafter Engine
CVE-2021-23258 4.2 MEDIUM Spring SPEL Expression Language Injection
CVE-2021-23259 4.2 MEDIUM Groovy Sandbox Bypass
CVE-2021-23262 4.2 MEDIUM Snakeyaml deserialization vulnerability bypass

IV. Related Vulnerabilities

Same product: Crafter CMS
Same vendor: Crafter Software
Same weakness: CWE-703

V. Comments for CVE-2021-23261

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