Advisories

Easy Chat Server 3.1 Denial of Service via message Parameter

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severity
high
date
Affecting
  • Easy Chat <= 3.1

CWE
  • CWE-940 Improper Verification of Source of a Communication Channel
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Miguel Mendez Z
Description
Easy Chat Server 3.1 contains a denial of service vulnerability that allows remote attackers to crash the application by sending oversized data in the message parameter. Attackers can establish a session via the chat.ghp endpoint and then send a POST request to body2.ghp with an excessively large message parameter value to cause the service to crash.

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