Executive Summary

CVE-2018-25195 is an SQL injection vulnerability in Wecodex Hotel CMS version 1.0, specifically in the admin login functionality. It occurs because the application does not properly sanitize the username parameter in POST requests to index.php with action=processlogin. This allows unauthenticated attackers to inject malicious SQL code.

By exploiting this vulnerability, attackers can bypass authentication mechanisms, gaining unauthorized administrative access or extracting sensitive information from the database.

Two common exploitation techniques include boolean-based blind SQL injection and time-based blind SQL injection, which leverage database responses or delays to confirm and exploit the vulnerability.

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Impact Analysis

This vulnerability can have serious impacts including unauthorized administrative access to the Wecodex Hotel CMS, allowing attackers to control or manipulate the system.

Attackers can also extract sensitive database information, potentially exposing confidential data.

Because the vulnerability requires no privileges or user interaction and can be exploited remotely over the network, it poses a high risk to affected systems.

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Detection Guidance

This SQL injection vulnerability can be detected by sending specially crafted POST requests to the admin login endpoint and observing the responses or response times.

• Use a boolean-based blind SQL injection payload in the username parameter, for example: username=admin" RLIKE (SELECT (CASE WHEN (7084=7084) THEN 0x61646d696e4061646d696e2e636f6d ELSE 0x28 END)) AND "eloY"="eloY&password=123456
• Use a time-based blind SQL injection payload to detect delays caused by the database, for example: username=admin" AND (SELECT * FROM (SELECT(SLEEP(5)))lzxm) AND "vZea"="vZea&password=123456

By sending these payloads to the POST endpoint `/demos/hotel/admin/index.php?action=processlogin` and analyzing the response content or timing, you can confirm the presence of the vulnerability.

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Compliance Impact

The SQL injection vulnerability in Wecodex Hotel CMS 1.0 allows unauthenticated attackers to bypass authentication and extract sensitive database information or gain unauthorized administrative access.

Such unauthorized access to sensitive data can lead to violations of data protection regulations and standards like GDPR and HIPAA, which require strict controls to protect personal and sensitive information from unauthorized access or disclosure.

Therefore, exploitation of this vulnerability could result in non-compliance with these regulations due to potential data breaches and failure to safeguard sensitive information.

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Mitigation Strategies

To mitigate the SQL injection vulnerability in Wecodex Hotel CMS 1.0, immediate steps include:

• Avoid using the vulnerable admin login functionality until a patch or fix is applied.
• Implement input validation and sanitization on the username parameter to prevent malicious SQL code injection.
• Use parameterized queries or prepared statements in the backend code to safely handle user inputs.
• Restrict access to the admin login page by IP whitelisting or other network-level controls to reduce exposure.
• Monitor logs for suspicious login attempts or unusual database activity that may indicate exploitation attempts.
• Apply any available security patches or updates from the vendor or developer as soon as they become available.

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