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CVE-2023-1719— Bitrix24 Insecure Global Variable Extraction

CVSS 7.5 · High EPSS 86.13% · P99
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I. Basic Information for CVE-2023-1719

Vulnerability Information
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Vulnerability Title
Bitrix24 Insecure Global Variable Extraction
Source: NVD (National Vulnerability Database)
Vulnerability Description
Global variable extraction in bitrix/modules/main/tools.php in Bitrix24 22.0.300 allows unauthenticated remote attackers to (1) enumerate attachments on the server and (2) execute arbitrary JavaScript code in the victim's browser, and possibly execute arbitrary PHP code on the server if the victim has administrator privilege, via overwriting uninitialised variables.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
初始化不恰当
Source: NVD (National Vulnerability Database)
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/main/tools.php存在安全漏洞。攻击者可利用该漏洞枚举服务器上的附件，或在受害者的浏览器中执行任意JavaScript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)

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Affected Products

VendorProductAffected VersionsCPESubscribe
Bitrix24Bitrix24 0 ~ 22.0.300 -

II. Public POCs for CVE-2023-1719

#POC DescriptionSource LinkShenlong Link
1Global variable extraction in bitrix/modules/main/tools.php in Bitrix24 22.0.300 allows unauthenticated remote attackers to (1) enumerate attachments on the server and (2) execute arbitrary JavaScript code in the victim’s browser, and possibly execute arbitrary PHP code on the server if the victim has administrator privilege, via overwriting uninitialised variables. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-1719.yamlPOC Details
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III. Intelligence Information for CVE-2023-1719

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

CVE-2023-17209.6 CRITICALBitrix24 Stored Cross-Site Scripting (XSS) via File Upload
CVE-2023-17179.6 CRITICALBitrix24 Cross-Site Scripting (XSS) via Client-side Prototype Pollution
CVE-2023-17169.0 CRITICALBitrix24 Stored Cross-Site Scripting (XSS) via Improper Input Neutralization on Invoice Ed
CVE-2023-17159.0 CRITICALBitrix24 Stored Cross-Site Scripting (XSS) via Improper Input Neutralization on Invoice Ed
CVE-2023-17148.8 HIGHBitrix24 Remote Command Execution (RCE) via Unsafe Variable Extraction
CVE-2023-17138.8 HIGHBitrix24 Remote Command Execution (RCE) via Insecure Temporary File Creation
CVE-2023-17187.5 HIGHBitrix24 Denial-of-Service (DoS) via Improper File Stream Access

IV. Related Vulnerabilities

Same product: Bitrix24
Same vendor: Bitrix24
Same weakness: CWE-665

V. Comments for CVE-2023-1719

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