Abyss Web Server retrieves configuration file using hexadecimal URL encoded "dot dot" sequences
| abyss-unicode-directory-traversal (8805) |  Medium Risk |
Description:
Abyss Web Server could allow a remote attacker to traverse directories outside of the Web root directory. A remote attacker can send a specially-crafted URL containing hexadecimal URL encoded "dot dot" sequences (in the form /%2e%2e/) to traverse directories outside of the Web root directory and download any file on the system. An attacker could use this vulnerability to obtain the administrative configuration file, which contains the administrative password in plaintext.
Platforms Affected:
- Aprelium, Abyss Web Server 1.0
Remedy:
Download the Abyss Web server Unicode patch available from NetCra$h Studios. See References.
Consequences:
Gain Access
References:
- Aprelium Technologies Web site, Abyss Web Server 1.0.3 released at http://www.aprelium.com/news/abws103.html.
- BugTraq Mailing List, Tue Apr 09 2002 - 15:20:33 CDT, Abyss Webserver 1.0 Administration password file retrieval exploit at http://archives.neohapsis.com/archives/bugtraq/2002-04/0110.html.
- BID-4466: Abyss Web Server File Disclosure Vulnerability
- BID-4467: Abyss Web Server Plaintext Administrative Password Vulnerability
- CVE-2002-0543: Directory traversal vulnerability in Aprelium Abyss Web Server (abyssws) before 1.0.0.2 allows remote attackers to read files outside the web root, including the abyss.conf file, via URL-encoded .. (dot dot) sequences in the HTTP request.
- CVE-2002-0544: Aprelium Abyss Web Server (abyssws) before 1.0.3 stores the administrative console password in plaintext in the abyss.conf file, which allows local users with access to the file to gain privileges.
Reported:
Apr 07, 2002
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