Vulnerability in Kernel package: can: isotp: sanitize CAN ID checks in isotp_bind()
Summary
GSD-2022-1001909: can: isotp: sanitize CAN ID checks in isotp_bind(). Affects Kernel versions >= e057dd3fc20ffb3d7f150af46542a51b59b90127, < f343dbe82314ab457153c9afd970be4e9e553020. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system. It provides the core functionality and interfaces for the system's hardware, software, and processes. The can-isotp module within the Kernel package is responsible for handling ISO-TP (ISO 15765-2) protocol data units over CAN (Controller Area Network). This protocol is commonly used in automotive and industrial applications for communication between electronic control units (ECUs).
Vulnerability Detail
The vulnerability identified in the can-isotp module involves insufficient sanitization of CAN ID checks in the isotp_bind() function. This vulnerability was introduced in version v5.10 of the Linux Kernel and fixed in version v5.15.33. An attacker could potentially exploit this vulnerability to manipulate or spoof CAN IDs, leading to unauthorized access, data manipulation, or disruption of communication between ECUs. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If updating the Kernel package is not immediately feasible, a temporary workaround can be implemented by disabling or restricting access to the affected functionality. This can be achieved by removing or blacklisting the can-isotp module or by applying appropriate access controls at the network or system level. However, it is strongly advised to apply the official fix as soon as possible.
Conclusion
In conclusion, the Kernel package's can-isotp module contains a vulnerability that allows for insufficient sanitization of CAN ID checks in the isotp_bind() function. This vulnerability can potentially be exploited to manipulate or spoof CAN IDs, leading to unauthorized access, data manipulation, or disruption of communication between ECUs. It is crucial to update the Kernel package to version v5.15.33 or later, or apply the recommended workaround, to mitigate the risks associated with this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could potentially allow an attacker to manipulate or spoof CAN IDs, leading to unauthorized access, data manipulation, or disruption of communication between ECUs.
You can use the Vulert playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the Vulert platform will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, no known exploits for this vulnerability have been documented. However, it is important to apply the fix or workaround as soon as possible to mitigate any potential risks.
Yes, this vulnerability can be exploited remotely if the affected functionality is accessible over a network. It is crucial to update the Kernel package or apply the recommended workaround to prevent potential exploitation.
For further support and assistance with vulnerability remediation, you can reach out to info@devnack.com. Our team of experts will be happy to assist you in securing your system.
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