CVE-2017-9544

CRITICAL

EFS Software Easy Chat Server <3.1 - Buffer Overflow

Title source: llm

Description

There is a remote stack-based buffer overflow (SEH) in register.ghp in EFS Software Easy Chat Server versions 2.0 to 3.1. By sending an overly long username string to registresult.htm for registering the user, an attacker may be able to execute arbitrary code.

Exploits (3)

exploitdb WORKING POC VERIFIED
by Aitezaz Mohsin · pythonremotewindows
https://www.exploit-db.com/exploits/42155
nomisec WORKING POC
by adenkiewicz · poc
https://github.com/adenkiewicz/CVE-2017-9544
metasploit WORKING POC NORMAL
by Marco Rivoli, Aitezaz Mohsin · rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/easychatserver_seh.rb

Scores

CVSS v3 9.8
EPSS 0.7959
EPSS Percentile 99.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
echatserver/easy_chat_server 2.0 - 3.1
Published Jun 12, 2017
Tracked Since Feb 18, 2026