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CVE-2023-1714— Bitrix24 Remote Command Execution (RCE) via Unsafe Variable Extraction

Quick assessment

Affected
Bitrix24 Bitrix24
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.

Bitrix24是美国Bitrix公司的一套企业社交平台。该平台包括在线通讯、日历管理和CRM（客户关系管理）等功能。 Bitrix24 22.0.300版本存在安全漏洞，该漏洞源于文件/user_options.php存在安全漏洞。经过身份验证的攻击者可利用该漏洞通过将任意内容附加到现有PHP文件或通过PHAR反序列化来执行任意代码。

CVSS 8.8 · High EPSS 1.40% · P72
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I. Basic Information for CVE-2023-1714

Vulnerability Information
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Vulnerability Title
Bitrix24 Remote Command Execution (RCE) via Unsafe Variable Extraction
Source: CVE Program / CVE List V5
Vulnerability Description
Unsafe variable extraction in bitrix/modules/main/classes/general/user_options.php in Bitrix24 22.0.300 allows remote authenticated attackers to execute arbitrary code via (1) appending arbitrary content to existing PHP files or (2) PHAR deserialization.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Bitrix24 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bitrix24是美国Bitrix公司的一套企业社交平台。该平台包括在线通讯、日历管理和CRM（客户关系管理）等功能。 Bitrix24 22.0.300版本存在安全漏洞，该漏洞源于文件/user_options.php存在安全漏洞。经过身份验证的攻击者可利用该漏洞通过将任意内容附加到现有PHP文件或通过PHAR反序列化来执行任意代码。
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
Bitrix24 Bitrix24 0 ~ 22.0.300 -

II. Public POCs for CVE-2023-1714

# POC Description Source Link Shenlong Link
1 Bitrix24 Remote Command Execution (RCE) via Unsafe Variable Extraction https://github.com/ForceFledgling/CVE-2023-1714 POC Details
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III. Intelligence Information for CVE-2023-1714

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Other References for CVE-2023-1714 (1)

Same Patch Batch · Bitrix24 · 2023-11-01 · 8 CVEs total

CVE-2023-1720 9.6 CRITICAL Bitrix24 Stored Cross-Site Scripting (XSS) via File Upload
CVE-2023-1717 9.6 CRITICAL Bitrix24 Cross-Site Scripting (XSS) via Client-side Prototype Pollution
CVE-2023-1716 9.0 CRITICAL Bitrix24 Stored Cross-Site Scripting (XSS) via Improper Input Neutralization on Invoice Ed
CVE-2023-1715 9.0 CRITICAL Bitrix24 Stored Cross-Site Scripting (XSS) via Improper Input Neutralization on Invoice Ed
CVE-2023-1713 8.8 HIGH Bitrix24 Remote Command Execution (RCE) via Insecure Temporary File Creation
CVE-2023-1719 7.5 HIGH Bitrix24 Insecure Global Variable Extraction
CVE-2023-1718 7.5 HIGH Bitrix24 Denial-of-Service (DoS) via Improper File Stream Access

IV. Related Vulnerabilities

Same product: Bitrix24
Same vendor: Bitrix24
Same weakness: CWE-502

V. Comments for CVE-2023-1714

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