IIS 4.0 allows a remote attacker to obtain the real pathname of the document root by requesting non-existent files with .ida or .idq extensions.
http://marc.info/?l=bugtraq&m=94780058006791&w=2
http://marc.info/?l=bugtraq&m=94770020309953&w=2
Source: Mitre, NVD
Published: 2000-01-11
Updated: 2018-10-30
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 9.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Severity: Critical