CVE-2000-1206

Vulnerability

CVE-2000-1206 affects Apache httpd versions before 1.3.11, specifically those configured for mass virtual hosting using mod_rewrite or mod_vhost_alias (the latter introduced in Apache 1.3.9). The vulnerability allows remote attackers to retrieve arbitrary files from the server file system. The issue arises from improper handling of file paths in the virtual hosting logic, enabling path traversal or direct access to files outside the intended document root [1].

Exploitation

An attacker does not require authentication or special privileges. By sending a crafted HTTP request to a vulnerable Apache server configured for mass name-based virtual hosting, the attacker can exploit the flaw to read arbitrary files on the server. The exact request manipulation likely involves path traversal sequences or manipulation of the server name to bypass restrictions [1].

Impact

Successful exploitation results in information disclosure. The attacker can retrieve any file readable by the Apache process (e.g., configuration files, source code, or sensitive data). This can lead to further compromise if credentials or other secrets are exposed.

Mitigation

The vulnerability was fixed in Apache 1.3.10, released in January 2000 [1]. Users of Apache 1.3.9 or earlier with mass virtual hosting enabled should upgrade to 1.3.10 or later (1.3.11 also includes the fix). For systems that cannot be upgraded immediately, disabling mass virtual hosting or avoiding the use of mod_rewrite and mod_vhost_alias for such configurations is advised. No other workarounds are documented in the available references.