Critical Vulnerability in node-xml2js: External Manipulation of Object Properties
Summary
UBUNTU-CVE-2023-0842: xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. Affects node-xml2js versions 0.2.8-1. No fix is published. How to fix ↓
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Background
node-xml2js is a popular JavaScript library used for converting XML to JavaScript objects and vice versa. It is widely utilized in applications that require XML parsing and manipulation. The library's ease of use and integration makes it a go-to choice for developers. However, it has been found to have a significant vulnerability that allows external attackers to manipulate object properties, potentially leading to unauthorized access or data corruption.
Vulnerability Detail
The vulnerability identified as CVE-2023-0842 in node-xml2js arises from improper validation of incoming JSON keys. This flaw allows an external attacker to edit or add new properties to an object by manipulating the proto property. The ramifications of this vulnerability can be severe, as it may enable attackers to alter the behavior of the application, leading to data integrity issues or unauthorized access to sensitive information.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, developers can implement input validation to sanitize incoming JSON keys before processing them. This can help mitigate the risk of exploitation until the package is updated. For example, you can check for unwanted properties in the incoming JSON and remove them before further processing.
Conclusion
The vulnerability CVE-2023-0842 in node-xml2js poses a significant risk due to its potential to allow external manipulation of object properties. It is crucial for developers to update to the patched version of the package and implement necessary workarounds to safeguard their applications.
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FAQ
CVE-2023-0842 is a vulnerability in the node-xml2js package that allows external attackers to manipulate object properties due to improper validation of JSON keys.
This vulnerability can lead to unauthorized changes in object properties, potentially compromising data integrity and application behavior.
Versions prior to 0.4.23 are affected by this vulnerability. It is recommended to upgrade to the latest version.
You can use Vulert, which monitors open-source vulnerabilities in real-time. By using the manifest file like package-lock.json, you can check for vulnerabilities without any installation. Visit the Vulert playground at Vulert Scanner.
If immediate updates are not possible, implement input validation to sanitize JSON keys as a temporary workaround until you can upgrade.
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