[DNSOP] Research of real-life abuse of dangling DNS records

2024-04-04 Thread Haya Shulman
Dear DNS experts, In a research which we concluded in June 2023 we performed longitudinal measurements (2020 - 2023) and analysis of abuse of dandling DNS records. We characterize the abuse and the attackers' infrastructure with recommendations for countermeasures. The research will be presented

[DNSOP] Evaluation of NSEC3-encloser attack

2024-03-25 Thread Haya Shulman
Dear researchers, operators and developers, Recently two attack vectors exploiting vulnerabilities in DNSSEC to launch Denial of Service (DoS) against DNS resolvers were publicly disclosed: KeyTrap and NSEC3-encloser attack. Both issues were assigned a CVE ID by MITRE: KeyTrap CVE-2023-50387 and

[DNSOP] KeyTrap Algorithmic Complexity Attacks Exploit Fundamental Design Flaw in DNSSEC

2024-02-16 Thread Haya Shulman
in the DNSSEC standard and our KeyTrap attacks that exploit them can be found here: https://labs.ripe.net/author/haya-shulman/keytrap-algorithmic-complexity-attacks-exploit-fundamental-design-flaw-in-dnssec/ The technical report describing our research can be found here: https://www.athene