Title: DNSTools Input Validation Vulnerability
Severity: MODERATE
Description:
A vulnerability exists in the 1.0.8 release of DNSTools (labeled on some areas of their site as 1.08), from DNSTools Software. By manipulating the contents of certain post variables, arbitrary code may be executed.
Note that version 1.10 is reportedly still vulnerable. See message from Wolfgang Wiese <wolfgang.wiese@rrze.uni-erlangen.de> in reference section.
The problem stems from the following code:
$host_name = $CGI->param("host_name");
$domain_name = $CGI->param("domain_name");
$error_description = "";
my $error_code = system("/usr/local/dnstools/delete_mx -d \"$domain_name\" -n \"$host_name\"");
No escaping or input validation is performed. This makes it easy for a would be attacker to execute arbitrary commands, as the user the webserver or cgi-bin is being run as.
Affected Products:
- DNSTools Software DNSTools 1.0.8
- DNSTools Software DNSTools 1.10.0
Juniper Networks provides this content via a wide variety of sources and production methods. If notified of errors or omissions in the content of this page, Juniper Networks, at its discretion, will modify or remove the page or leave the content as is, depending on various factors including but not limited to the reputation and authority of the party providing the notification. Please use the contact information displayed elsewhere on this page to report any errors or omissions regarding the content on this page.
