CVE-2021-43114 : Exploit Details and Defense Strategies
Discover the impact of CVE-2021-43114 on FORT Validator versions prior to 1.5.2, leading to crashes when processing X.509 EE certificates from RPKI CAs, affecting RTR clients like BGP routers.
FORT Validator versions prior to 1.5.2 may crash when an RPKI CA releases an X.509 EE certificate, causing RTR clients like BGP routers to lose access to RPKI VRP data.
Understanding CVE-2021-43114
FORT Validator vulnerability impacting Route Origin Validation.
What is CVE-2021-43114?
FORT Validator versions below 1.5.2 can crash, impeding RTR clients' access to RPKI VRP data due to X.509 EE certificate publication by an RPKI CA.
The Impact of CVE-2021-43114
- Disables Route Origin Validation in RTR clients like BGP routers.
Technical Details of CVE-2021-43114
Vulnerability details affecting FORT Validator.
Vulnerability Description
The issue in FORT Validator versions prior to 1.5.2 may lead to crashes when handling X.509 EE certificates from RPKI CAs.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Vulnerable Version: < 1.5.2
Exploitation Mechanism
- RPKI CAs publishing X.509 EE certificates can trigger crashes in FORT Validator.
Mitigation and Prevention
Steps to mitigate and prevent the CVE-2021-43114 vulnerability.
Immediate Steps to Take
- Upgrade FORT Validator to version 1.5.2 or later.
- Monitor vendor advisories for patches.
Long-Term Security Practices
- Regularly update software and dependencies.
- Perform security assessments and audits.
Patching and Updates
- Apply patches provided by FORT Validator.