Description

A vulnerability was identified in lenve vhr 1.0-SNAPSHOT. Affected by this issue is some unknown functionality of the file vhr.sql. The manipulation leads to use of default credentials. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.3",
  "pubDate": "2026-09-13T07:17:41.533Z",
  "pubdate": "2026-09-13T07:17:41.533Z",
  "executiveSummary": "A critical security vulnerability exists in lenve vhr 1.0-SNAPSHOT involving the deployment of default administrative credentials.\nThis vulnerability is classified as the use of default credentials, which allows unauthorized actors to gain entry into the application without performing legitimate authentication.\nThe affected component is identified within vhr.sql, which initializes the database with hardcoded or publicly known account identifiers.\nExploitation of this flaw is possible remotely, requiring no specialized access beyond network connectivity to the application interface.\nThe availability of public exploit material increases the risk profile, enabling automated or manual unauthorized access by threat actors.\nThe lack of vendor response exacerbates the risk, as no official patch or security advisory has been released to address the insecurity inherent in the configuration.\nImpact includes total compromise of the application's administrative functionality, data exposure, and potential unauthorized management of system operations.",
  "technicalDetails": "The vulnerability originates from the insecure configuration of the database schema file, vhr.sql, within the lenve vhr 1.0-SNAPSHOT distribution. This file contains SQL initialization statements that populate the authentication tables with predefined, static credentials upon deployment.\nThe root cause is the failure of the development process to enforce a mandatory credential rotation or account initialization process during the first-run experience of the application.\nAttackers can identify the installation of the software by scanning for default login pages associated with the vhr product. Upon locating an exposed instance, the attacker leverages the publicly documented default username and password pair to establish a privileged session.\nThe attack flow proceeds as follows: First, the attacker reaches the application login interface via a standard web browser or automated request tool. Second, the attacker inputs the default credentials provided by the vhr.sql configuration. Third, the application backend validates these credentials against the database entries populated at install time. Fourth, the system grants an authenticated session token, providing the attacker with elevated privileges.\nBecause the credentials are part of the baseline codebase, they remain constant across all instances of lenve vhr 1.0-SNAPSHOT unless manually remediated by the administrator. This exposure is categorized as remote, as it does not require physical access to the server or underlying infrastructure, assuming the web interface is reachable via the network.\nThe post-exploitation impact is severe, granting the attacker full control over the application's business logic. This includes the ability to exfiltrate sensitive data, modify user records, inject further malicious code, or use the compromised instance as a pivot point for further lateral movement within the target's internal network environment.\nNo authentication is required prior to this process, as the goal of the exploitation is to bypass the intended authentication mechanism through authorized, albeit insecure, credentials. There are no secondary complex requirements for exploitation; the vulnerability is self-contained within the application's deployment configuration."
}