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Vulnerability DatabaseCVE-2023-28452
CVE-2023-28452:
NixOS vulnerability analysis and mitigation
Overview
An issue was discovered in CoreDNS through version 1.10.1, identified as CVE-2023-28452. This vulnerability, known as the TuDoor Attack, affects DNS resolving software and allows attackers to trigger a resolver to ignore valid responses, resulting in denial of service for normal DNS resolution (NVD, GitHub Advisory).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. The attack mechanism allows an attacker to forge a response targeting the source port of a vulnerable resolver without needing to guess the correct TXID (NVD).
Impact
The primary impact of this vulnerability is denial of service (DoS) affecting normal DNS resolution. The effects of an exploit would be widespread and highly impactful, as it disrupts the fundamental DNS resolution process (GitHub Advisory).
Mitigation and workarounds
Users are advised to upgrade CoreDNS to a version newer than 1.10.1 to mitigate this vulnerability (FortiGuard).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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