CVE-2017-2801 Explained : Impact and Mitigation

Randombit Botan cryptographic library version 2.0.1 contains a vulnerability in x500 string comparisons that can be exploited for malicious purposes.

Understanding CVE-2017-2801

The vulnerability in the Randombit Botan cryptographic library version 2.0.1 poses a risk to certificate verification due to a programming error.

What is CVE-2017-2801?

The programming error in the x500 string comparisons implementation in Botan 2.0.1 can lead to issues with certificate verification, potentially allowing attackers to exploit the system by sending a specially crafted X509 certificate.

The Impact of CVE-2017-2801

The vulnerability has a CVSS base score of 6.5, indicating a medium severity issue with a high attack complexity and network-based attack vector. While the impact on availability is low, confidentiality and integrity impacts are also low.

Technical Details of CVE-2017-2801

The technical aspects of the vulnerability provide insight into its nature and potential risks.

Vulnerability Description

The programming mistake in the x500 string comparisons implementation of Botan 2.0.1 can result in certificate verification problems and potential abuse through specially crafted X509 certificates.

Affected Systems and Versions

Product: Botan
Vendor: Randombit
Version: 2.0.1

Exploitation Mechanism

To exploit this vulnerability, an attacker needs to send a specifically designed X509 certificate to the client or server application, taking advantage of the programming error in x500 string comparisons.

Mitigation and Prevention

Addressing the CVE-2017-2801 vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Botan cryptographic library to a patched version that addresses the x500 string comparison issue.
Monitor for any unusual certificate verification behavior that could indicate exploitation attempts.

Long-Term Security Practices

Regularly update cryptographic libraries and dependencies to prevent known vulnerabilities.
Implement strict certificate validation processes to mitigate risks associated with certificate verification bypass vulnerabilities.

Patching and Updates

Stay informed about security advisories from Randombit and apply patches promptly to ensure the security of the cryptographic library.