Critical SSH Host Key Verification Vulnerability in Cargo Package Manager
Summary
DEBIAN-CVE-2022-46176: Cargo is a Rust package manager. Affects cargo versions < 0.66.0+ds1-1. Fixed in 0.66.0+ds1-1. How to fix ↓
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Background
Cargo is the official package manager for the Rust programming language, designed to facilitate the management of Rust packages and their dependencies. It provides features such as dependency resolution, versioning, and package publishing. However, Cargo has a significant security flaw that affects its ability to verify SSH host keys when cloning repositories, potentially exposing users to man-in-the-middle attacks.
Vulnerability Detail
The vulnerability, identified as CVE-2022-46176, arises from Cargo's failure to perform SSH host key verification when cloning indexes and dependencies via SSH. This oversight allows an attacker to intercept and manipulate data during transmission, leading to potential unauthorized access or data corruption. All versions of Rust containing Cargo prior to 1.66.1 are affected, making it crucial for users to address this issue promptly.
How To Fix
Minimum fixed version
0.66.0+ds1-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade cargoTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can avoid using SSH for cloning repositories by configuring Git to use HTTPS instead. This can be done by executing the following command in the terminal:
git config --global url."https://".insteadOf "git@"
This configuration will redirect SSH requests to HTTPS, mitigating the risk associated with the vulnerability until a proper update can be applied.
Conclusion
The vulnerability CVE-2022-46176 in Cargo poses a significant risk due to its failure to verify SSH host keys, making it susceptible to man-in-the-middle attacks. Users are strongly advised to upgrade to the latest version to mitigate this risk and ensure the security of their projects.
See every vulnerability recorded for cargo →
FAQ
CVE-2022-46176 is a vulnerability in the Cargo package manager that allows for man-in-the-middle attacks due to lack of SSH host key verification.
Any version of Cargo prior to 1.66.1 is vulnerable. You can check your version by running 'cargo --version' in the terminal.
Failing to address this vulnerability could allow attackers to intercept and manipulate data, leading to unauthorized access or data corruption.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software without requiring access to the code. You can check your application against known vulnerabilities using the Vulert playground.
You can upgrade Cargo by running 'sudo apt update' followed by 'sudo apt install cargo' in your terminal to ensure you have the latest patched version.
References
Related vulnerabilities
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