CVE-2023-38497 : Vulnerability Insights and Analysis
Cargo in Rust before v0.72.2 allows local users to modify source code during compilation due to insecure permissions. Learn the impact, technical details, and how to prevent exploitation.
Cargo not respecting umask when extracting crate archives leads to a high severity vulnerability where local users can exploit the source code. Find out the impact, technical details, and mitigation steps.
Understanding CVE-2023-38497
Cargo, bundled with Rust, fails to respect the umask setting during crate archive extraction on UNIX-like systems, posing a serious security risk to local users.
What is CVE-2023-38497?
Cargo, in versions < 0.72.2 bundled with Rust < 1.71.1, exposes projects to unauthorized modification by local users due to incorrect umask settings during archive extraction.
The Impact of CVE-2023-38497
The vulnerability allows local users to manipulate source code during compilation and execution, compromising the integrity and confidentiality of the system. It requires user interaction but can be exploited with low privileges.
Technical Details of CVE-2023-38497
Cargo's insecure handling of permissions during crate extraction poses a significant risk to affected systems.
Vulnerability Description
Cargo fails to enforce proper file permissions, enabling local users to alter source code, leading to unauthorized changes in the project.
Affected Systems and Versions
- Vendor: rust-lang
- Product: cargo
- Versions Affected: < 0.72.2
Exploitation Mechanism
Local users can exploit this vulnerability by manipulating the source code within the Cargo directory, potentially compromising the entire project.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices can help prevent exploitation and secure the system.
Immediate Steps to Take
Configure system settings to restrict access to the Cargo directory and update to the patched version (0.72.2) bundled with Rust 1.71.1 or later.
Long-Term Security Practices
Regularly monitor and update Rust and Cargo versions to ensure the latest security fixes are in place. Educate users on secure coding practices and permissions management.
Patching and Updates
Refer to official Rust and Cargo documentation for security policies, patches, and updates to address CVE-2023-38497.