CVE-2023-32020mediumCWE-350

CVE-2023-32020: medium-severity vulnerability in Microsoft Windows Server 2008 R2 Service Pack 1

Windows DNS Spoofing Vulnerability

Published · Updated

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.6epss 0.7%
In short

Windows DNS servers can be tricked into accepting fake DNS responses from attackers on the same network, causing users to be directed to malicious websites instead of legitimate ones. This is dangerous because users trust their DNS results without realizing they've been redirected.

Technical detail

A DNS cache poisoning vulnerability in Windows DNS implementations allows an attacker on the same network segment to inject spoofed DNS responses that bypass validation checks, potentially resulting in users being redirected to attacker-controlled sites. The attack requires network proximity and the victim DNS resolver to process the malicious response before the legitimate one.

Summary generated and translated by AI from the official description.
Windows DNS Spoofing Vulnerability
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C