Debian LTS Advisory ([SECURITY] [DLA 1671-1] coturn security update)

Multiple vulnerabilities were discovered in coTURN, a TURN and STUN server for VoIP. CVE-2018-4056 An SQL injection vulnerability was discovered in the coTURN administrator web portal. As the administration web interface is shared with the production, it is unfortunately not possible to easily filter outside access and this security update completely disables the web interface. Users should use the local, command line interface instead. CVE-2018-4058 Default configuration enables unsafe loopback forwarding. A remote attacker with access to the TURN interface can use this vulnerability to gain access to services that should be local only. CVE-2018-4059 Default configuration uses an empty password for the local command line administration interface. An attacker with access to the local console (either a local attacker or a remote attacker taking advantage of CVE-2018-4058) could escalade privileges to administrator of the coTURN server.

coturn on Debian Linux

This check tests the installed software version using the apt package manager.

For Debian 8 'Jessie', these problems have been fixed in version 4.2.1.2-1+deb8u1. We recommend that you upgrade your coturn packages.