CVE-2000-0343

Sniffit 0.3.x - Remote Code Execution via Long MAIL FROM Header

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2000-0343. PoCs published by g463, MaXX, FuSyS.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in Sniffit 0.3.7.beta's mail logging functionality. It crafts a malicious SMTP 'mail from:' command to overflow a buffer, redirect execution to a port-binding shellcode (port 10000), and achieve remote code execution as root.

Description

Buffer overflow in Sniffit 0.3.x with the -L logging option enabled allows remote attackers to execute arbitrary commands via a long MAIL FROM mail header.

Exploits (3)

exploitdb WORKING POC VERIFIED
by g463 · cremotemultiple
https://www.exploit-db.com/exploits/19888

This exploit targets a buffer overflow vulnerability in Sniffit 0.3.7.beta's mail logging functionality. It crafts a malicious SMTP 'mail from:' command to overflow a buffer, redirect execution to a port-binding shellcode (port 10000), and achieve remote code execution as root.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Sniffit 0.3.7.beta
No auth needed
Prerequisites: Sniffit configured with -L normmail · Network access to the target's SMTP port (25)
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by MaXX · cremotemultiple
https://www.exploit-db.com/exploits/19887

This exploit targets a buffer overflow vulnerability in Sniffit 0.3.7.beta's email logging mechanism. It crafts a malicious packet to overflow the stack and execute shellcode that adds a root user to /etc/passwd.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Sniffit 0.3.7.beta
No auth needed
Prerequisites: Sniffit configured to log emails · Network access to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by FuSyS · cremotemultiple
https://www.exploit-db.com/exploits/19886

This exploit targets a buffer overflow vulnerability in Sniffit 0.3.7beta's email logging mechanism, allowing remote code execution as root. It uses a modified shellcode to bypass input filters and overwrites the return address to execute arbitrary code.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Sniffit <= 0.3.7beta
No auth needed
Prerequisites: Sniffit configured to log emails · Network access to the target host
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/1158
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/templates/archive.pike?list=1&msg=200005021736.TAA01991%40ALuSSi

Scores

EPSS 0.0560
EPSS Percentile 91.9%

Details

Status published
Products (2)
brecht_claerhout/sniffit 0.3.6hip
brecht_claerhout/sniffit 0.3.7beta
Published May 02, 2000
Tracked Since Feb 18, 2026