CVE-2002-0572 Information

Description

FreeBSD 4.5 and earlier and possibly other BSD-based operating systems allows local users to write to or read from restricted files by closing the file descriptors 0 (standard input) 1 (standard output) or 2 (standard error) which may then be reused by a called setuid process that intended to perform I/O on normal files.

Reference

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0033.html http://online.securityfocus.com/archive/1/268970 http://online.securityfocus.com/archive/1/269102 http://www.ciac.org/ciac/bulletins/m-072.shtml http://www.iss.net/security_center/static/8920.php http://www.kb.cert.org/vuls/id/809347 http://www.osvdb.org/6095 http://www.securityfocus.com/bid/4568