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CVE-2025-45777: Critical Vulnerability in OTP Mechanism Bypassing Authentication in Chavara Matrimony Site

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Overview

The cybersecurity landscape is continually evolving with new vulnerabilities discovered regularly. One such critical vulnerability, CVE-2025-45777, has recently been identified in the OTP mechanism of Chavara Family Welfare Centre Chavara Matrimony Site v2.0. This vulnerability allows potential attackers to bypass authentication by supplying a specially crafted request, thereby posing a significant threat to the integrity and confidentiality of the system. Given the potential system compromise or data leakage, it is imperative for organizations to understand and mitigate this vulnerability promptly.

Vulnerability Summary

CVE ID: CVE-2025-45777
Severity: Critical (9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

Chavara Family Welfare Centre Chavara Matrimony Site | v2.0

How the Exploit Works

The vulnerability exists due to an issue in the OTP (One-Time Password) mechanism of the Chavara Matrimony Site v2.0. The authentication module fails to verify the integrity of user-supplied requests adequately. An attacker can exploit this vulnerability by sending a specially crafted request to the server, potentially bypassing the OTP authentication. This breach allows the attacker to impersonate legitimate users, potentially leading to a full system compromise or data leakage.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP request, with the “malicious_payload” potentially containing a crafted request that exploits the vulnerability.

POST /chavara/authenticate/otp HTTP/1.1
Host: chavara.com
Content-Type: application/json
{ "otp": "malicious_payload" }

Mitigation Recommendations

To mitigate this vulnerability, apply the vendor-provided patch as soon as possible. This patch addresses the flaw in the OTP mechanism, thereby preventing potential exploitation. Until the patch can be applied, implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These tools can help detect and prevent malicious requests from reaching your application, providing a layer of security against this and other similar vulnerabilities. It is recommended to regularly update your systems and software to prevent exploitation of known vulnerabilities.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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