A logic vulnerability (fail-open condition) has been identified within the Metasploit Framework's JSON-RPC web service interface. When an exception occurs during the database health check (db.check) and the environment variable MSFWSJSONRPCAPITOKEN is not explicitly set, the application resets the internal state flag msf.authinitialized to false. The ApiToken Warden authentication strategy misinterprets this false value as an indicator that authentication is not initialized or required, thereby granting unauthenticated local access to the JSON-RPC request dispatcher.
Rapid7 Metasploit Pro versions 4.21.2 and lower suffer from a stored cross site scripting vulnerability, due to a lack of JavaScript request string sanitization. Using this vulnerability, an authenticated attacker can execute arbitrary HTML and script code in the target browser against another Metasploit Pro user using a specially crafted request. Note that in most deployments, all Metasploit Pro users tend to enjoy privileges equivalent to local administrator.
By launching the drbremotecodeexec exploit, a Metasploit Framework user will inadvertently expose Metasploit to the same deserialization issue that is exploited by that module, due to the reliance on the vulnerable Distributed Ruby class functions. Since Metasploit Framework typically runs with elevated privileges, this can lead to a system compromise on the Metasploit workstation. Note that an attacker would have to lie in wait and entice the Metasploit user to run the affected module against a malicious endpoint in a "hack-back" type of attack. Metasploit is only vulnerable when the drbremotecodeexec module is running. In most cases, this cannot happen automatically.
By sending a specially crafted HTTP GET request to a listening Rapid7 Metasploit HTTP handler, an attacker can register an arbitrary regular expression. When evaluated, this malicious handler can either prevent new HTTP handler sessions from being established, or cause a resource exhaustion on the Metasploit server.
The Metasploit Framework module "auxiliary/admin/http/telpho10credentialdump" module is affected by a relative path traversal vulnerability in the untar method which can be exploited to write arbitrary files to arbitrary locations on the host file system when the module is run on a malicious HTTP server.
The Metasploit Framework module "post/osx/gather/enumosx module" is affected by a relative path traversal vulnerability in the getkeychains method which can be exploited to write arbitrary files to arbitrary locations on the host filesystem when the module is run on a malicious host.
Cross-site Scripting (XSS) vulnerability in the 'host' field of a discovered scan asset in Rapid7 Metasploit Pro allows an attacker with a specially-crafted network service of a scan target to store an XSS sequence in the Metasploit Pro console, which will trigger when the operator views the record of that scanned host in the Metasploit Pro interface. This issue affects Rapid7 Metasploit Pro version 4.17.1-20200427 and prior versions, and is fixed in Metasploit Pro version 4.17.1-20200514. See also CVE-2020-7355, which describes a similar issue, but involving the generated 'notes' field of a discovered scan asset.
Cross-site Scripting (XSS) vulnerability in the 'notes' field of a discovered scan asset in Rapid7 Metasploit Pro allows an attacker with a specially-crafted network service of a scan target store an XSS sequence in the Metasploit Pro console, which will trigger when the operator views the record of that scanned host in the Metasploit Pro interface. This issue affects Rapid7 Metasploit Pro version 4.17.1-20200427 and prior versions, and is fixed in Metasploit Pro version 4.17.1-20200514. See also CVE-2020-7354, which describes a similar issue, but involving the generated 'host' field of a discovered scan asset.
Rapid7 Metasploit Framework versions before 5.0.85 suffers from an instance of CWE-78: OS Command Injection, wherein the libnotify plugin accepts untrusted user-supplied data via a remote computer's hostname or service name. An attacker can create a specially-crafted hostname or service name to be imported by Metasploit from a variety of sources and trigger a command injection on the operator's terminal. Note, only the Metasploit Framework and products that expose the plugin system is susceptible to this issue -- notably, this does not include Rapid7 Metasploit Pro. Also note, this vulnerability cannot be triggered through a normal scan operation -- the attacker would have to supply a file that is processed with the dbimport command.
Routes used to stop running Metasploit tasks (either particular ones or all tasks) allowed GET requests. Only POST requests should have been allowed, as the stop/stopall routes change the state of the service. This could have allowed an attacker to stop currently-running Metasploit tasks by getting an authenticated user to execute JavaScript. As of Metasploit 4.14.0 (Update 2017061301), the routes for stopping tasks only allow POST requests, which validate the presence of a secret token to prevent CSRF attacks.