CVE-2000-0171

atsar_linux - Privilege Escalation via Improper Output File Permission Check

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2000-0171. PoCs published by S. Krahmer.

AI-analyzed exploit summary This exploit leverages a vulnerability in atsadc (part of the atsar package) where it opens arbitrary files as root without proper permission checks. The PoC creates a malicious shared library and uses /etc/ld.so.preload to gain root privileges via a setuid binary.

Description

atsadc in the atsar package for Linux does not properly check the permissions of an output file, which allows local users to gain root privileges.

Exploits (1)

exploitdb WORKING POC VERIFIED
by S. Krahmer · perllocallinux
https://www.exploit-db.com/exploits/19804

This exploit leverages a vulnerability in atsadc (part of the atsar package) where it opens arbitrary files as root without proper permission checks. The PoC creates a malicious shared library and uses /etc/ld.so.preload to gain root privileges via a setuid binary.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: atsar < 1.5 (atsadc binary)
No auth needed
Prerequisites: atsadc must be setuid root · /etc/ld.so.preload must not exist
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/1048
Third Party Advisory mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2000-03/0102.html

Scores

EPSS 0.0077
EPSS Percentile 51.1%

Details

Status published
Products (1)
at_computing/atsar_linux 1.4
Published Mar 11, 2000
Tracked Since Feb 18, 2026