Marvin Attack: RSA Vulnerability in Rust rsa crate
Summary
CVE-2023-49092: Marvin Attack: potential key recovery through timing sidechannels. Affects rsa versions < 0.9.6. No fix is published. How to fix ↓
Also tracked for
- rust-rsa · Debian:13
The same CVE-2023-49092 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
The Rust rsa crate is a popular open-source library used for RSA encryption and decryption operations. It provides a set of functions and algorithms for working with RSA keys and performing cryptographic operations. The crate is widely used in various applications and systems that require secure communication and data protection. However, the crate is vulnerable to the Marvin Attack, a timing sidechannel vulnerability that allows an attacker to recover the private key used for RSA decryption and signing operations by observing the time taken for the decryption operation. This vulnerability poses a significant risk to the confidentiality and integrity of encrypted data.
Vulnerability Detail
The Marvin Attack is a timing sidechannel vulnerability that exploits the variations in the time taken for RSA decryption operations. By carefully measuring the time it takes for decryption with the private key, an attacker can infer information about the key and potentially recover it. This attack can be performed by an attacker with only the ability to observe the timing of the decryption operation. The Rust rsa crate is one of the implementations vulnerable to this attack. The vulnerability has a CVSS score of 7.4, indicating a high severity level. It can lead to the compromise of encrypted data and the exposure of sensitive information.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As there is no fixed version available, there is no specific workaround provided at this time. It is recommended to follow the steps mentioned in the 'how_to_fix' section and apply the necessary updates once a fixed version is released.
Conclusion
The Rust rsa crate is vulnerable to the Marvin Attack, a timing sidechannel vulnerability that can lead to the recovery of the private key used for RSA decryption and signing operations. This vulnerability poses a significant risk to the confidentiality and integrity of encrypted data. It is important to monitor the official repository and the Rust community for updates and patches addressing this vulnerability. Once a fixed version is released, it is crucial to update the rsa crate in affected applications and systems to the latest secure version. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Marvin Attack is a timing sidechannel vulnerability that allows an attacker to recover the private key used for RSA decryption and signing operations by observing the time taken for the decryption operation.
The Rust rsa crate is one of the implementations vulnerable to the Marvin Attack. Other RSA implementations may also be susceptible to this timing sidechannel vulnerability.
The Marvin Attack can lead to the compromise of encrypted data and the exposure of sensitive information. It poses a significant risk to the confidentiality and integrity of RSA-encrypted data.
No, at the time of this report, no fixed version of the Rust rsa crate is available. It is recommended to monitor the official repository and the Rust community for updates and patches addressing this vulnerability.
To protect your application from the Marvin Attack, it is crucial to update the rsa crate in affected applications and systems to the latest secure version once a fixed version is released. Additionally, review and update any cryptographic implementations that rely on the rsa crate to ensure they are not susceptible to timing sidechannel attacks.
References
Related vulnerabilities
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