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CVE-2025-34143— ETQ Reliance CG Authentication Bypass via Trailing Space RCE

Quick assessment

Affected
ETQ Reliance CG (legacy)
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.

ETQ Reliance CG是美国ETQ公司的一款质量管理系统。 ETQ Reliance CG存在安全漏洞，该漏洞源于通过操纵用户名字段可以绕过身份验证登录为特权内部SYSTEM用户，可能导致远程代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 31.16% · P98

Public Exploits 1

Nuclei · 1 CVE-2025-34143.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
ETQ Reliance CG (legacy) < MP-4583 affected
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I. Basic Information for CVE-2025-34143

Vulnerability Information
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Vulnerability Title
ETQ Reliance CG Authentication Bypass via Trailing Space RCE
Source: CVE Program / CVE List V5
Vulnerability Description
An authentication bypass vulnerability exists in ETQ Reliance on the CG (legacy) platform. The application allowed login as the privileged internal SYSTEM user by manipulating the username field. The SYSTEM account does not require a password, enabling attackers with network access to the login page to obtain elevated access. Once authenticated, an attacker could achieve remote code execution by modifying Jython scripts within the application. This issue was resolved by introducing stricter validation logic to exclude internal accounts from public authentication workflows in version MP-4583.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
ETQ Reliance CG 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ETQ Reliance CG是美国ETQ公司的一款质量管理系统。 ETQ Reliance CG存在安全漏洞，该漏洞源于通过操纵用户名字段可以绕过身份验证登录为特权内部SYSTEM用户，可能导致远程代码执行。
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
ETQ Reliance CG (legacy) 0 ~ MP-4583 -

II. Public POCs for CVE-2025-34143

# POC Description Source Link Shenlong Link
1 An authentication bypass vulnerability exists in ETQ Reliance on the CG (legacy) platform. The application allowed login as the privileged internal SYSTEM user by manipulating the username field. The SYSTEM account does not require a password, enabling attackers with network access to the login page to obtain elevated access. Once authenticated, an attacker could achieve remote code execution by modifying Jython scripts within the application. This issue was resolved by introducing stricter validation logic to exclude internal accounts from public authentication workflows in version MP-4583. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-34143.yaml POC Details
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III. Intelligence Information for CVE-2025-34143

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Security Blog Posts for CVE-2025-34143 (1)

Other References for CVE-2025-34143 (1)

Same Patch Batch · ETQ · 2025-07-22 · 4 CVEs total

CVE-2025-34140 8.7 HIGH ETQ Reliance CG/NXG API Authorization Bypass via ;localized-text URI Suffix
CVE-2025-34141 ETQ Reliance CG < SE.2025.1 Reflected XSS in `SQLConverterServlet`
CVE-2025-34142 ETQ Reliance CG < SE.2025.1 / < 2025.1.2 XXE Injection in SSO SAML Handler

IV. Related Vulnerabilities

Same product: Reliance CG (legacy)
Same vendor: ETQ
Same weakness: CWE-288

V. Comments for CVE-2025-34143

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