Apache HTTP Server up to 2.0.39 on Windows/OS2/Netware Backslash path traversal

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apache HTTP Server up to 2.0.39 on Windows/OS2/Netware. This issue affects some unknown processing of the component Backslash Handler. The manipulation leads to path traversal. This vulnerability is referenced as CVE-2002-0661. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apache HTTP Server up to 2.0.39 on Windows/OS2/Netware (Web Server). This issue affects some unknown processing of the component Backslash Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Directory traversal vulnerability in Apache 2.0 through 2.0.39 on Windows, OS2, and Netware allows remote attackers to read arbitrary files and execute commands via .. (dot dot) sequences containing \ (backslash) characters.

The weakness was published 08/12/2002 by Auriemma Luigi with Apache Software Foundation (Website). The advisory is shared at httpd.apache.org. The identification of this vulnerability is CVE-2002-0661. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 11092 (Apache <= 2.0.39 Win32 Crafted Traversal Arbitrary File Access), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10802 (Apache 2.0 Directory Traversal and File Disclosure Vulnerability).

Upgrading eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1595.

The vulnerability is also documented in the databases at X-Force (9808), Exploit-DB (21697), Tenable (11092), SecurityFocus (BID 5434†) and Vulnerability Center (SBV-897†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 11092
Nessus Name: Apache <= 2.0.39 Win32 Crafted Traversal Arbitrary File Access
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 11092
OpenVAS Name: Apache 2.0.39 Win32 directory traversal
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍

Timelineinfo

08/09/2002 🔍
08/12/2002 +3 days 🔍
08/12/2002 +0 days 🔍
08/12/2002 +0 days 🔍
08/18/2002 +6 days 🔍
02/09/2003 +175 days 🔍
07/22/2014 +4181 days 🔍
05/26/2025 +3961 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: httpd.apache.org
Researcher: Auriemma Luigi
Organization: Apache Software Foundation
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2002-0661 (🔍)
GCVE (CVE): GCVE-0-2002-0661
GCVE (VulDB): GCVE-100-18605
X-Force: 9808
SecurityFocus: 5434 - Apache 2.0 Encoded Backslash Directory Traversal Vulnerability
Vulnerability Center: 897 - Apache 2.0 Encoded Backslash Directory Traversal Vulnerability, Medium

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

Entryinfo

Created: 07/22/2014 22:39
Updated: 05/26/2025 14:48
Changes: 07/22/2014 22:39 (70), 05/09/2019 12:08 (9), 05/26/2025 14:48 (26)
Complete: 🔍
Cache ID: 216::103

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