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If DNS recursion is enabled, an attacker could spoof the origin on the UDP packet in order to make the DNS send the response to the victim server. An attacker could abuse ANY or DNSSEC record types as they use to have the bigger responses.
Vulnerabilities in DNS Bypass Firewall Rules (UDP 53) is a Low risk vulnerability that is also high frequency and high visibility. This is the most severe combination of security factors that exists and it is extremely important to find it on your network and fix it as soon as possible.
3 wrz 2024 · Port 53 Vulnerabilities. Port 53 is used for the Domain Name System (DNS), which translates human-readable domain names such as facebook.com or linkedin.com into IP addresses. DNS is essential for internet traffic, and it operates using both UDP and TCP for queries and transfers, respectively.
25 cze 2024 · Pentesting DNS involves a deep understanding of how the DNS operates and the potential vulnerabilities that it might have. The DNS operates on port 53 and primarily uses the User Datagram Protocol (UDP) but can also use the Transmission Control Protocol (TCP) for larger queries or zone transfers.
17 lis 2021 · Under the new DNS spec, port 53 was no longer the default used for lookup queries. Instead, those requests were sent over a port randomly chosen from the entire range of available UDP ports.
Penetration testing scripts for assessing DNS server vulnerabilities. Documentation and guides on best practices for DNS security. Real-world case studies and examples from critical network environments.
21 lip 2020 · Government Health Care. High Tech. Retail. This post is also available in: 日本語 (Japanese) Executive Summary. In July 2020, Microsoft released a security update, CVE-2020-1350 | Windows DNS Server Remote Code Execution Vulnerability, for a new remote code execution (RCE) vulnerability.
