CVE-1999-0103

Echo/Chargen - DoS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-1999-0103. Includes Metasploit module auxiliary/scanner/chargen/chargen_probe.

AI-analyzed exploit summary This Metasploit module scans for the Chargen service (UDP port 19) and checks if it responds with expected character sequences. It can also be used to spoof requests for DRDoS testing.

Description

Echo and chargen, or other combinations of UDP services, can be used in tandem to flood the server, a.k.a. UDP bomb or UDP packet storm.

Exploits (1)

metasploit SCANNER
rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/chargen/chargen_probe.rb

This Metasploit module scans for the Chargen service (UDP port 19) and checks if it responds with expected character sequences. It can also be used to spoof requests for DRDoS testing.

Classification
Scanner 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Chargen service (RFC 864)
No auth needed
Prerequisites: Network access to UDP port 19 · Chargen service running on target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/80171

Scores

EPSS 0.1463
EPSS Percentile 96.2%

Details

Status published
Published Feb 08, 1996
Tracked Since Feb 18, 2026