=============================================================================== DEC-95-332A DATE: 07.APR.1995 =============================================================================== SOURCE: Digital Equipment Corporation Digital Software Security Response Team & Digital Firewall Engineering COMPONENT: SATAN (or SANTA) Security Analysis U*IX Networks Security Administrator Tool for Analyzing Networks (SATAN) Dear Valued Digital Customer, Subj: ULTRIX, OpenVMS (UCX), DEC OSF/1 and Digital's Firewall Product DESCRIPTION: ------------------------------------------------------------------------- SATAN is a testing and reporting tool that collects a variety of information about networked hosts. SATAN gathers information about specified hosts and networks by examining network services (for example, finger, NFS, NIS, and ftp). In addition to reporting potential vulnerabilities, SATAN gathers general network information (network topology, network services run, types of hardware and software being used on the network). The advisories, the documentation contained in the SATAN package, or the related news stories, do not disclose any previously unknown computer system security vulnerabilities and does not pose a threat to Digital Equipment Operating Systems properly maintained (with a Security Baseline), with the latest software releases and with subsequent release patches installed. The reported methods of probing have been known for a number of years and corrected through ECO (patch release) and subsequent releases of the operating systems. These SATAN probes may be monitored by a number of techniques, only some of which are addressed in the CERT Advisory and subsequent articles. A more complete analysis of the general problem has been conducted by firewall experts in Digital's Palo Alto and Galway, Ireland, research labs and product groups. No vulnerabilities where discovered in properly configured environments. For information to monitor your site for SATAN probes, using the proper combination of Digital products, configured in the optimal manner please contact your normal Digital support channel. Digital Equipment Corporation does not intend to distribute Satan nor does it plan any an advisory containing kit location, testing results or redistribution of any advisories containing that information. Digital Equipment Corporation recommends that this Software be treated with all the due care necessary based on the current publicly available information or advisories and make an informed decision prior to any installation, or use, within their environment and to use all available security monitoring techniques to guard against a potential malicious probe of SATAN to their environment. GENERAL INFORMATION --------------------------------------------------------------------- SATAN was designed as a security tool for system and network administrators for security analysis. However, given its potential wide distribution, ease of use, and ability to scan remote networks, SATAN is also likely to be used to locate vulnerable hosts for malicious reasons. It is also possible that sites running SATAN for a legitimate purpose will accidentally scan your systems/environment via SATAN's exploratory mode. As always, Digital recommends that you regularly review your system management and security procedures. Digital will continue to review and enhance security features, and work with our customers to further improve the integrity of their systems. _____ _____ _______ _________ | /____/ \ /____/ \ /______/ \ /________/| | Digital Equipment Corporation / ___\/ / ___\/ | ___ \/ | |________|/ |Software Security Response Team \ (/__/\ \ (/__/\ | |/__) |/ | | | | \___ \ \ \___ \ \ | / | | | | ____) )/ ____) )/ | |\ \ \ | | | | /___/ / /___/ / | | \ \ \ | | | | \______/ \______/ |_|/ \__\/ |_|/ |