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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ETQ | Reliance CG (legacy) | < MP-4583 | MP-4583 |
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- ETQ Reliance - Authentication Bypass via Trailing Space http/cves/2025/CVE-2025-34143.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
References
- https://www.etq.com/product-overview/ product
- https://www.etq.com/blog/etq-reliance-security-update/ vendor-advisory patch
- https://slcyber.io/assetnote-security-research-center/how-we-accidentally-discovered-a-remote-code-execution-vulnerability-in-etq-reliance/ technical-description
- https://www.vulncheck.com/advisories/etq-reliance-cg-authentication-bypass-via-trailing-space-rce third-party-advisory