CVE-1999-0746

SuSE Linux - Denial of Service via in.identd Default Configuration

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-1999-0746. PoCs published by friedolin.

AI-analyzed exploit summary This exploit targets a vulnerability in SuSE Linux's inetd.conf configuration where in.identd is started with the -w -t120 option, allowing a remote attacker to exhaust system resources by flooding the identd service with multiple connections, leading to a denial of service (DoS). The code establishes numerous TCP connections to port 113 (ident) and sends a crafted ident request to each connection.

Description

A default configuration of in.identd in SuSE Linux waits 120 seconds between requests, allowing a remote attacker to conduct a denial of service.

Exploits (1)

exploitdb WORKING POC VERIFIED
by friedolin · cdoslinux
https://www.exploit-db.com/exploits/19463

This exploit targets a vulnerability in SuSE Linux's inetd.conf configuration where in.identd is started with the -w -t120 option, allowing a remote attacker to exhaust system resources by flooding the identd service with multiple connections, leading to a denial of service (DoS). The code establishes numerous TCP connections to port 113 (ident) and sends a crafted ident request to each connection.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: SuSE Linux 4.4 - 6.2, Slackware 3.2 and 3.6 (with in.identd configured with -w -t120)
No auth needed
Prerequisites: Target system must be running a vulnerable version of SuSE Linux or Slackware with in.identd configured with -w -t120 options · Network access to the target's ident port (113)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/587

Scores

EPSS 0.0529
EPSS Percentile 91.5%

Details

Status published
Products (11)
slackware/slackware_linux 3.2
slackware/slackware_linux 3.6
suse/suse_linux 4.4
suse/suse_linux 4.4.1
suse/suse_linux 5.0
suse/suse_linux 5.1
suse/suse_linux 5.2
suse/suse_linux 5.3
suse/suse_linux 6.0
suse/suse_linux 6.1
... and 1 more
Published Aug 16, 1999
Tracked Since Feb 18, 2026