Software Engineering Institute

From the OPenNDAP website:

OPeNDAP provides software which makes local data accessible to remote locations regardless of local storage format. OPeNDAP also provides tools for transforming existing applications into OPeNDAP clients (i.e., enabling them to remotely access OPeNDAP served data).

A CGI script in OPeNDAP Version 3 (CGI_server) contains a vulnerability that allows an attacker to execute arbitrary commands on the server by supplying a malicious URL.

A remote, unauthenticated attacker may be able to execute arbitrary commands.

Apply a patch
The OPeNDAP team has released a patch to address this issue. Users are encouraged to apply the patch as soon as possible.

Upgrade

Server version 4 (Hyrax) does not have this vulnerability.

Restrict access

Until updates can be applied, restricting access to vulnerable servers via password protectected directories or IP access control lists may mitigate this vulnerability.