CVE-2003-0282

UnZip 5.50 - Directory Traversal via Invalid Dot Character Filtering

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2003-0282. PoCs published by Jelmer, sionnx.

AI-analyzed exploit summary The provided text describes a directory traversal vulnerability in Info-ZIP UnZip, where encoded characters in '../' sequences allow arbitrary file extraction. No actual exploit code is present, only a description and reference link.

Description

Directory traversal vulnerability in UnZip 5.50 allows attackers to overwrite arbitrary files via invalid characters between two . (dot) characters, which are filtered and result in a ".." sequence.

Exploits (2)

exploitdb WRITEUP VERIFIED
by Jelmer · textremotelinux
https://www.exploit-db.com/exploits/22584

The provided text describes a directory traversal vulnerability in Info-ZIP UnZip, where encoded characters in '../' sequences allow arbitrary file extraction. No actual exploit code is present, only a description and reference link.

Classification
Writeup 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: Info-ZIP UnZip
No auth needed
Prerequisites: A maliciously crafted ZIP archive
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by sionnx · poc
https://github.com/sionnx/cve-2003-0282

This repository contains the source code for Info-ZIP's UnZip utility, version 5.51, which includes fixes for multiple security vulnerabilities, including CVE-2003-0282. The code demonstrates the vulnerability and its patches, particularly focusing on path traversal and symlink security issues.

Classification
Working Poc 90%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: Info-ZIP UnZip 5.51 and earlier
No auth needed
Prerequisites: Access to a system with vulnerable UnZip version · Ability to craft a malicious zip archive
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (15)

Core 15
Core References
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=105259038503175&w=2
Vendor Advisory vendor-advisory x_refsource_conectiva
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000672
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/12004
Various Sources x_refsource_confirm
http://www.info-zip.org/FAQ.html
Patch, Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2003-199.html
Vendor Advisory vendor-advisory x_refsource_mandrake
http://www.mandriva.com/security/advisories?name=MDKSA-2003:073
Various Sources vendor-advisory x_refsource_turbo
http://www.turbolinux.com/security/TLSA-2003-42.txt
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A619
Third Party Advisory, US Government Resource third-party-advisory government-resource x_refsource_ciac
http://www.ciac.org/ciac/bulletins/n-111.shtml
Various Sources vendor-advisory x_refsource_caldera
ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-031.0.txt
Exploit, Patch, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/7550
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=105786446329347&w=2
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2003-200.html
Various Sources vendor-advisory x_refsource_immunix
http://download.immunix.org/ImmunixOS/7+/Updates/errata/IMNX-2003-7+-017-01
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2003/dsa-344

Scores

EPSS 0.2253
EPSS Percentile 97.4%

Details

Status published
Products (3)
info-zip/unzip 5.50
sco/openlinux_server 3.1.1
sco/openlinux_workstation 3.1.1
Published Jun 16, 2003
Tracked Since Feb 18, 2026