Apache Tomcat up to 3.3.1 URL index.html Source information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apache Tomcat up to 3.3.1. Affected by this vulnerability is an unknown functionality of the file index.html of the component URL Handler. This manipulation with the input <url>%00 causes information disclosure (Source). The identification of this vulnerability is CVE-2003-0042. Furthermore, there is an exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apache Tomcat up to 3.3.1 (Application Server Software) and classified as critical. Affected by this vulnerability is an unknown functionality of the file index.html of the component URL Handler. The manipulation with the input value <url>%00 leads to a information disclosure vulnerability (Source). The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

Jakarta Tomcat before 3.3.1a, when used with JDK 1.3.1 or earlier, allows remote attackers to list directories even with an index.html or other file present, or obtain unprocessed source code for a JSP file, via a URL containing a null character.

The weakness was shared 02/07/2003 (Website). It is possible to read the advisory at debian.org. This vulnerability is known as CVE-2003-0042. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. By approaching the search of inurl:index.html it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 15083 (Debian DSA-246-1 : tomcat - information exposure, XSS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86470 (Apache Tomcat Null Byte Directory/File Disclosure Vulnerability).

Upgrading to version bis 3.3.1a eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 2061.

The vulnerability is also documented in the databases at X-Force (11194), Exploit-DB (22205), Tenable (15083), SecurityFocus (BID 6721†) and Secunia (SA7972†). The entries VDB-20120, VDB-20121 and VDB-82153 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Source
Class: Information disclosure / Source
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 15083
Nessus Name: Debian DSA-246-1 : tomcat - information exposure, XSS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53322
OpenVAS Name: Debian Security Advisory DSA 246-1 (tomcat)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Tomcat bis 3.3.1a

Snort ID: 2061
Snort Message: SERVER-APACHE Apache Tomcat null byte directory listing attempt
Snort Class: 🔍

Suricata ID: 2102061
Suricata Class: 🔍
Suricata Message: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

01/26/2003 🔍
01/29/2003 +3 days 🔍
01/30/2003 +1 days 🔍
02/07/2003 +8 days 🔍
02/07/2003 +0 days 🔍
02/07/2003 +0 days 🔍
09/01/2003 +206 days 🔍
09/29/2004 +394 days 🔍
08/07/2014 +3599 days 🔍
08/25/2025 +4036 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: debian.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2003-0042 (🔍)
GCVE (CVE): GCVE-0-2003-0042
GCVE (VulDB): GCVE-100-20119
X-Force: 11194
SecurityFocus: 6721 - Apache Tomcat Null Byte Directory/File Disclosure Vulnerability
Secunia: 7972 - Debian updates to tomcat, Moderately Critical
Vulnerability Center: 1860 - Apache Tomcat <=3.3.1 with JDK <=1.3.1 Directory Listing via URL with NULL Characters, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 08/07/2014 17:50
Updated: 08/25/2025 18:34
Changes: 08/07/2014 17:50 (85), 05/12/2019 09:05 (6), 11/28/2024 17:57 (27), 08/25/2025 18:34 (2)
Complete: 🔍
Cache ID: 216:7A2:103

Be aware that VulDB is the high quality source for vulnerability data.

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