CVE-2008-4193

Alt-N SecurityGateway 1.0.1 - Stack-Based Buffer Overflow via Long Username Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 4 public exploits for CVE-2008-4193. PoCs published by Metasploit, Heretic2, securfrog, including Metasploit module exploits/windows/http/altn_securitygateway.

AI-analyzed exploit summary This is a Metasploit module exploiting a buffer overflow in Alt-N SecurityGateway via the 'username' parameter, leading to remote code execution with SYSTEM privileges. The exploit uses SEH overwrites and a custom encoder to bypass bad characters.

Description

Stack-based buffer overflow in SecurityGateway.dll in Alt-N Technologies SecurityGateway 1.0.1 allows remote attackers to execute arbitrary code via a long username parameter.

Exploits (4)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotewindows
https://www.exploit-db.com/exploits/16803

This is a Metasploit module exploiting a buffer overflow in Alt-N SecurityGateway via the 'username' parameter, leading to remote code execution with SYSTEM privileges. The exploit uses SEH overwrites and a custom encoder to bypass bad characters.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Alt-N SecurityGateway 1.0.1
No auth needed
Prerequisites: Network access to the target on port 4000 · Vulnerable version of Alt-N SecurityGateway
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Heretic2 · c++remotewindows
https://www.exploit-db.com/exploits/5827

This exploit targets a remote stack overflow in Alt-N SecurityGateway v1.00-1.01. It uses a custom-encoded bindshell payload to bypass character restrictions and achieve remote code execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: Alt-N SecurityGateway v1.00-1.01
No auth needed
Prerequisites: Network access to the target service · Target service running on port 4000
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by securfrog · perldoswindows
https://www.exploit-db.com/exploits/5718

This exploit targets a buffer overflow vulnerability in SecurityGateway 1.0.1 by sending a maliciously crafted POST request to the remote administration port (4000). The payload overwrites the EIP register with a pattern of 'c' characters, demonstrating control over execution flow.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: SecurityGateway 1.0.1
No auth needed
Prerequisites: Network access to the target's port 4000 · SecurityGateway 1.0.1 running with remote administration enabled
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC NORMAL
by jduck · rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/altn_securitygateway.rb

This Metasploit module exploits a buffer overflow in Alt-N SecurityGateway via the 'username' parameter, leading to remote code execution with SYSTEM privileges. It uses SEH overwrites and a custom encoder to bypass bad characters.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Alt-N SecurityGateway 1.0.1
No auth needed
Prerequisites: Network access to port 4000 · Vulnerable version of SecurityGateway
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (9)

Core 9
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/5827
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/5718
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/42769
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2008/1717/references
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/30497
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/29457
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1020156
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/4302

Scores

EPSS 0.8045
EPSS Percentile 99.2%

Details

CWE
CWE-119
Status published
Products (1)
alt-n/securitygateway 1.0.1
Published Sep 24, 2008
Tracked Since Feb 18, 2026