Title

IBM z/OS SMF recording options for the FTP server must be configured to write SMF records for all eligible events. (Cat II impact)

Discussion

Remote access services, such as those providing remote access to network devices and information systems, which lack automated monitoring capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Automated monitoring of remote access sessions allows organizations to detect cyberattacks and also ensure ongoing compliance with remote access policies by auditing connection activities of remote access capabilities, such as Remote Desktop Protocol (RDP), on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets). Satisfies: SRG-OS-000032-GPOS-00013, SRG-OS-000392-GPOS-00172

Check Content

If FTPDATA is configured with the following SMF statements, this is not a finding. FTP.DATA Configuration Statements SMF TYPE119 SMFJES TYPE119 SMFSQL TYPE119 SMFAPPE [Not coded or commented out] SMFDEL [Not coded or commented out] SMFEXIT [Not coded or commented out] SMFLOGN [Not coded or commented out] SMFREN [Not coded or commented out] SMFRETR [Not coded or commented out] SMFSTOR [Not coded or commented out]

Fix Text

Configure SMF options to conform to the specifications in the FTPDATA Configuration Statements below or that they are commented out. SMF TYPE119 SMFJES TYPE119 SMFSQL TYPE119 SMFAPPE [Not coded or commented out] SMFDEL [Not coded or commented out] SMFEXIT [Not coded or commented out] SMFLOGN [Not coded or commented out] SMFREN [Not coded or commented out] SMFRETR [Not coded or commented out] SMFSTOR [Not coded or commented out] The FTP Server can provide audit data in the form of SMF records. SMF record type 119, the TCP/IP Statistics record, can be written with the following subtypes: 70 - Append 70 - Delete and Multiple Delete 72 - Invalid Logon Attempt 70 - Rename 70 - Get (Retrieve) and Multiple Get 70 - Put (Store and Store Unique) and Multiple Put SMF data produced by the FTP Server provides transaction information for both successful and unsuccessful FTP commands. This data may provide valuable information for security audit activities. Type 119 records use a more standard format and provide more information.

Additional Identifiers

Rule ID: SV-223974r958406_rule

Vulnerability ID: V-223974

Group Title: SRG-OS-000032-GPOS-00013

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.