Executive Summary

CVE-2019-25312 is a persistent cross-site scripting (XSS) vulnerability found in InoERP version 0.7.2, specifically in the comment section of the application.

This vulnerability allows unauthenticated attackers to inject malicious JavaScript code into comments. Because the application does not properly sanitize or escape user input, the malicious scripts are stored and later executed in the browsers of other users who view the affected comments.

The injected scripts can perform actions such as stealing cookies and session information, which could lead to account hijacking or unauthorized access.

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Impact Analysis

This vulnerability can impact users by allowing attackers to execute malicious scripts in their browsers when they view compromised comments.

The primary impact includes the theft of cookies and session information, which attackers can use to hijack user accounts and impersonate legitimate users.

Because the vulnerability requires no authentication and has a network attack vector with low complexity, it poses a significant risk to all users interacting with the comment section.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability can be detected by attempting to submit a comment containing a JavaScript payload to the comment section of InoERP version 0.7.2 and then observing if the script executes when the comment is viewed.'}, {'type': 'paragraph', 'content': 'A practical test involves navigating to a forum content page such as: http://your-server-ip/content.php?mode=9&content_type=forum&category_id=7, creating a new question, and submitting a comment with the payload: <img src=# onerror="alert(document.cookie);">. If an alert box showing cookies appears when viewing the comment, the vulnerability is present.'}, {'type': 'paragraph', 'content': 'There are no specific network commands provided in the resources, but manual testing via the web interface with crafted input is the suggested detection method.'}] [1]

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Mitigation Strategies

Immediate mitigation steps include disabling or restricting the comment functionality to prevent unauthenticated users from submitting comments until a patch or fix is applied.

Applying proper input sanitization and output encoding on the comment input fields is necessary to neutralize malicious scripts. Since the current function mysql_prep() does not sanitize input, updating the code to use proper escaping functions such as htmlentities or equivalent is critical.

If a patch or updated version of InoERP is available from the vendor or community, upgrading to that version is recommended.

In the absence of an official patch, consider implementing web application firewall (WAF) rules to block suspicious script injections in comments.

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