Apache HTTP Server non-Unix version URL encoded directory traversal
| apache-encoded-directory-traversal (9808) |  High Risk |
Description:
A vulnerability in the default installation of Apache HTTP Server could allow a remote attacker to traverse directories on the Web server and view and execute files. A remote attacker could create a specially-crafted URL request containing hexadecimal URL encoded "backslash dot dot" sequences (in the form of 5c%2e%2e%5c) to traverse directories and view arbitrary files and directories on the Web server. An attacker could use this vulnerability to execute commands on the system by traversing to the /cgi-bin/ directory.
Note: This vulnerability only affects non-Unix installations of Apache HTTP Server.
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Apache HTTP Server (2.0.40 or later), available from the Apache Web site. See References.
As a workaround, refer to the Apache Security Bulletin August 9, 2002. See References.
References:
- Apache Security Bulletin August 9, 2002: Apache 2.0 vulnerability affects non-Unix platforms.
- Apache Web site: Apache HTTPD Project.
- BugTraq Mailing List, Fri Aug 16 2002 - 12:01:29 CDT : Apache 2.0.39 directory traversal and path disclosure bug .
- CIAC Information Bulletin M-114: Apache 2.0 Path Disclosure Vulnerability.
- BID-5434: Apache 2.0 Encoded Backslash Directory Traversal Vulnerability
- CVE-2002-0661: 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.
Platforms Affected:
- Apache HTTP Server 2.0
- Apache HTTP Server 2.0.28
- Apache HTTP Server 2.0.28 Beta
- Apache HTTP Server 2.0.32
- Apache HTTP Server 2.0.32 Beta
- Apache HTTP Server 2.0.34 Beta
- Apache HTTP Server 2.0.35
- Apache HTTP Server 2.0.36
- Apache HTTP Server 2.0.37
- Apache HTTP Server 2.0.38
- Apache HTTP Server 2.0.39
Reported:
Aug 09, 2002
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