Executive Summary

[{'type': 'paragraph', 'content': "CVE-2019-25525 is an SQL injection vulnerability in Inout EasyRooms Ultimate Edition version 1.0. It allows unauthenticated attackers to inject malicious SQL code through the 'guests' parameter in POST requests to the /search/rentals endpoint. This happens because the application does not properly sanitize user inputs, enabling attackers to manipulate database queries."}, {'type': 'paragraph', 'content': 'By exploiting this vulnerability, attackers can bypass authentication, extract sensitive data, or modify the contents of the database.'}] [1]

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Impact Analysis

This vulnerability can have serious impacts including unauthorized access to sensitive data stored in the database, such as user information or rental details.

Attackers can also modify or corrupt database contents, potentially disrupting the normal operation of the application.

Since the vulnerability allows bypassing authentication, it can lead to further unauthorized actions within the system.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': 'This SQL injection vulnerability can be detected by sending crafted POST requests to the vulnerable endpoints and observing the responses for signs of SQL injection.'}, {'type': 'paragraph', 'content': "Specifically, testing the 'guests' parameter in the /search/rentals endpoint with payloads that include tautology conditions or time-based delays can reveal the vulnerability."}, {'type': 'paragraph', 'content': "Example command using curl to test the 'guests' parameter for SQL injection:"}, {'type': 'list_item', 'content': 'curl -X POST -d "guests=-1\' OR 3*2*1=6 AND 00046=00046 --" http://target/search/rentals'}, {'type': 'paragraph', 'content': "A time-based blind SQL injection test can be performed by injecting payloads that cause delays, such as using the sleep() function in the 'property1' parameter at the /search/searchdetailed endpoint."}, {'type': 'list_item', 'content': 'curl -X POST -d "property1=(select(0)from(select(sleep(5)))v)" http://target/search/searchdetailed'}, {'type': 'paragraph', 'content': 'Monitoring the response time or error messages after sending these payloads can help detect the presence of the vulnerability.'}] [1]

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Mitigation Strategies

[{'type': 'paragraph', 'content': 'Immediate mitigation steps include:'}, {'type': 'list_item', 'content': 'Restrict or block access to the vulnerable endpoints (/search/rentals and /search/searchdetailed) until a patch or fix is applied.'}, {'type': 'list_item', 'content': "Implement input validation and sanitization on all user-supplied parameters, especially 'guests', 'location', 'numguest', and 'property1'."}, {'type': 'list_item', 'content': 'Use prepared statements or parameterized queries in the application code to prevent SQL injection.'}, {'type': 'list_item', 'content': 'Monitor logs for suspicious POST requests containing SQL injection payloads.'}, {'type': 'list_item', 'content': 'If possible, update the application to a version where this vulnerability is fixed or apply vendor-provided patches.'}] [1]

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