CVE-2020-16162 : Vulnerability Insights and Analysis
Discover the impact of CVE-2020-16162, a vulnerability in RIPE NCC RPKI Validator 3.x allowing remote attackers to bypass access restrictions using revoked certificates. Learn about mitigation steps.
An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28 that allows remote attackers to bypass access restrictions by using revoked certificates.
Understanding CVE-2020-16162
This CVE involves missing validation checks in the RPKI certificate-tree validation process, potentially enabling unauthorized access.
What is CVE-2020-16162?
The vulnerability in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28 allows attackers to circumvent intended access controls using revoked certificates.
The Impact of CVE-2020-16162
The vulnerability could lead to unauthorized access to systems and data, compromising the security and integrity of RPKI certificate validation.
Technical Details of CVE-2020-16162
This section provides detailed technical insights into the CVE.
Vulnerability Description
The issue arises from missing validation checks on CRL presence or staleness in the X509-based RPKI certificate-tree validation process.
Affected Systems and Versions
- RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28
Exploitation Mechanism
Attackers can exploit this vulnerability by utilizing revoked certificates to bypass access restrictions.
Mitigation and Prevention
Protect systems from CVE-2020-16162 with the following measures:
Immediate Steps to Take
- Apply vendor-supplied patches promptly
- Monitor and restrict access to RPKI Validator instances
Long-Term Security Practices
- Regularly update and maintain RPKI Validator software
- Implement network segmentation to limit exposure
Patching and Updates
Ensure timely installation of security patches and updates to mitigate the risk of exploitation.