CVE-2000-1072

iPlanet iCal 2.1 Patch 2 - Arbitrary Command Execution via World-Writable Files

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2000-1072. PoCs published by @stake.

AI-analyzed exploit summary This exploit leverages a world-writable script in iPlanet iCal to gain root privileges. It first obtains an icsuser shell by modifying a startup script, then creates a shim library to execute arbitrary code as root when the service restarts.

Description

iCal 2.1 Patch 2 installs many files with world-writeable permissions, which allows local users to modify the iCal configuration and execute arbitrary commands by replacing the iplncal.sh program with a Trojan horse.

Exploits (1)

exploitdb WORKING POC VERIFIED
by @stake · bashlocalsolaris
https://www.exploit-db.com/exploits/20275

This exploit leverages a world-writable script in iPlanet iCal to gain root privileges. It first obtains an icsuser shell by modifying a startup script, then creates a shim library to execute arbitrary code as root when the service restarts.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Netscape iPlanet iCal (versions with vulnerable installation)
No auth needed
Prerequisites: Local access to the system · iPlanet iCal installed with vulnerable permissions
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Patch, Vendor Advisory vendor-advisory x_refsource_atstake
http://www.atstake.com/research/advisories/2000/a100900-1.txt
Exploit, Patch, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/1768
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/5756
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/7212

Scores

EPSS 0.0108
EPSS Percentile 60.8%

Details

Status published
Products (1)
netscape/iplanet_ical 2.1 patch2
Published Dec 11, 2000
Tracked Since Feb 18, 2026