Advisories

Nmap 7.70 Denial of Service via XML Entity Expansion

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severity
medium
date
Affecting
  • ZenMap <= 7.70

CWE
  • CWE-674 Uncontrolled Recursion
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Gionathan "John" Reale
Description
Nmap 7.70 contains a denial of service vulnerability that allows local attackers to crash the application by processing malicious XML files with exponential entity expansion. Attackers can create a crafted XML file with nested entity definitions and open it through ZenMap's scan import functionality to cause the program to consume excessive system resources and crash.

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