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XCCDF
HPE 3PAR SSMC Web Server Security Technical Implementation Guide
Profiles
III - Administrative Sensitive
III - Administrative Sensitive
An XCCDF Profile
Details
Items
Prose
19 rules organized in 19 groups
SRG-APP-000001-WSR-000001
1 Rule
SSMC web server must limit the number of allowed simultaneous session requests.
Medium Severity
Web server management includes the ability to control the number of users and user sessions that utilize a web server. Limiting the number of allowed users and sessions per user is helpful in limiting risks related to several types of Denial of Service attacks. Although there is some latitude concerning the settings themselves, the settings should follow DoD-recommended values, but the settings should be configurable to allow for future DOD direction. While the DOD will specify recommended values, the values can be adjusted to accommodate the operational requirement of a given system.
SRG-APP-000014-WSR-000006
1 Rule
SSMC web server must use encryption strength in accordance with the categorization of data hosted by the web server when remote connections are provided.
High Severity
The SSMC web server has several remote communications channels. Examples are user requests via http/https, communication to a backend database, or communication to authenticate users. The encryption used to communicate must match the data that is being retrieved or presented. Methods of communication are http for publicly displayed information, https to encrypt when user data is being transmitted, VPN tunneling, or other encryption methods to a database. Satisfies: SRG-APP-000014-WSR-000006, SRG-APP-000172-WSR-000104, SRG-APP-000439-WSR-000151, SRG-APP-000439-WSR-000156, SRG-APP-000441-WSR-000181, SRG-APP-000442-WSR-000182
SRG-APP-000015-WSR-000014
1 Rule
SSMC web server must use cryptography to protect the integrity of remote sessions.
High Severity
Data exchanged between the user and the web server can range from static display data to credentials used to Log on to the hosted application. Even when data appears to be static, the nondisplayed logic in a web page may expose business logic or trusted system relationships. The integrity of all data being exchanged between the user and web server must always be trusted. To protect the integrity and trust, encryption methods should be used to protect the complete communication session.
SRG-APP-000016-WSR-000005
1 Rule
SSMC web server must generate information to be used by external applications or entities to monitor and control remote access.
Medium Severity
Remote access to the web server is any access that communicates through an external, non-organization-controlled network. Remote access can be used to access hosted applications or to perform management functions. By providing remote access information to an external monitoring system, the organization can monitor for cyber attacks and monitor compliance with remote access policies. The organization can also look at data organization wide and determine an attack or anomaly is occurring on the organization which might not be noticed if the data were kept local to the web server. Examples of external applications used to monitor or control access would be audit log monitoring systems, dynamic firewalls, or infrastructure monitoring systems.
SRG-APP-000016-WSR-000005
1 Rule
SSMC web server must generate information to be used by external applications or entities to monitor and control remote access.
Medium Severity
Remote access to the web server is any access that communicates through an external, non-organization-controlled network. Remote access can be used to access hosted applications or to perform management functions. By providing remote access information to an external monitoring system, the organization can monitor for cyber attacks and monitor compliance with remote access policies. The organization can also look at data organization wide and determine an attack or anomaly is occurring on the organization which might not be noticed if the data were kept local to the web server. Examples of external applications used to monitor or control access would be audit log monitoring systems, dynamic firewalls, or infrastructure monitoring systems.
SRG-APP-000016-WSR-000005
1 Rule
SSMC web server must generate information to be used by external applications or entities to monitor and control remote access.
Medium Severity
Remote access to the web server is any access that communicates through an external, non-organization-controlled network. Remote access can be used to access hosted applications or to perform management functions. By providing remote access information to an external monitoring system, the organization can monitor for cyber attacks and monitor compliance with remote access policies. The organization can also look at data organization wide and determine an attack or anomaly is occurring on the organization which might not be noticed if the data were kept local to the web server. Examples of external applications used to monitor or control access would be audit log monitoring systems, dynamic firewalls, or infrastructure monitoring systems. Satisfies: SRG-APP-000016-WSR-000005, SRG-APP-000358-WSR-000163, SRG-APP-000358-WSR-000063, SRG-APP-000125-WSR-000071
SRG-APP-000142-WSR-000089
1 Rule
The SSMC web server must be configured to use a specified IP address and port.
Medium Severity
The web server must be configured to listen on a specified IP address and port. Without specifying an IP address and port for the web server to utilize, the web server will listen on all IP addresses available to the hosting server. If the web server has multiple IP addresses, i.e., a management IP address, the web server will also accept connections on the management IP address. Accessing the hosted application through an IP address normally used for nonapplication functions opens the possibility of user access to resources, utilities, files, ports, and protocols that are protected on the desired application IP address.
SRG-APP-000175-WSR-000095
1 Rule
The SSMC web server must perform RFC 5280-compliant certification path validation.
Medium Severity
A certificate's certification path is the path from the end entity certificate to a trusted root certification authority (CA). Certification path validation is necessary for a relying party to make an informed decision regarding acceptance of an end entity certificate. Certification path validation includes checks such as certificate issuer trust, time validity and revocation status for each certificate in the certification path. Revocation status information for CA and subject certificates in a certification path is commonly provided via certificate revocation lists (CRLs) or online certificate status protocol (OCSP) responses.
SRG-APP-000295-WSR-000012
1 Rule
SSMC web server must set an absolute timeout for sessions.
Medium Severity
Leaving sessions open indefinitely is a major security risk. An attacker can easily use an already authenticated session to access the hosted application as the previously authenticated user. By closing sessions after an absolute period of time, the user is forced to re-authenticate guaranteeing the session is still in use. Enabling an absolute timeout for sessions closes sessions that are still active. Examples would be a runaway process accessing the web server or an attacker using a hijacked session to slowly probe the web server.
SRG-APP-000295-WSR-000134
1 Rule
SSMC web server must set an inactive timeout for sessions.
Medium Severity
Leaving sessions open indefinitely is a major security risk. An attacker can easily use an already authenticated session to access the hosted application as the previously authenticated user. By closing sessions after a set period of inactivity, the web server can make certain that those sessions that are not closed through the user logging out of an application are eventually closed. Acceptable values are 5 minutes for high-value applications, 10 minutes for medium-value applications, and 20 minutes for low-value applications.
SRG-APP-000295-WSR-000134
1 Rule
SSMC web server must set an inactive timeout for shell sessions.
Medium Severity
Leaving sessions open indefinitely is a major security risk. An attacker can easily use an already authenticated session to access the hosted application as the previously authenticated user. By closing sessions after a set period of inactivity, the web server can make certain that those sessions that are not closed through the user logging out of an application are eventually closed. Acceptable values are 5 minutes for high-value applications, 10 minutes for medium-value applications, and 20 minutes for low-value applications.
SRG-APP-000315-WSR-000004
1 Rule
SSMC web server must restrict connections from nonsecure zones.
Medium Severity
Remote access to the web server is any access that communicates through an external, non-organization-controlled network. Remote access can be used to access hosted applications or to perform management functions. A web server can be accessed remotely and must be capable of restricting access from what the DOD defines as nonsecure zones. Nonsecure zones are defined as any IP, subnet, or region that is defined as a threat to the organization. The nonsecure zones must be defined for public web servers logically located in a DMZ, as well as private web servers with perimeter protection devices. By restricting access from nonsecure zones, through internal web server access list, the web server can stop or slow denial of service (DoS) attacks on the web server. Satisfies: SRG-APP-000315-WSR-000004, SRG-APP-000315-WSR-000003
SRG-APP-000176-WSR-000096
1 Rule
SSMC web server application, libraries, and configuration files must only be accessible to privileged users.
Medium Severity
A web server can be modified through parameter modification, patch installation, upgrades to the web server or modules, and security parameter changes. With each of these changes, there is the potential for an adverse effect such as a DoS, web server instability, or hosted application instability. To limit changes to the web server and limit exposure to any adverse effects from the changes, files such as the web server application files, libraries, and configuration files must have permissions and ownership set properly to only allow privileged users access. Satisfies: SRG-APP-000176-WSR-000096, SRG-APP-000380-WSR-000072, SRG-APP-000211-WSR-000030
SRG-APP-000516-WSR-000174
1 Rule
SSMC web server must enable strict two-factor authentication for access to the webUI.
Medium Severity
Accounts secured with only a password are subject to multiple forms of attack, from brute force, to social engineering. By enforcing strict two-factor authentication, this reduces the risk of account compromise by requiring an additional factor that is not a password. Strict two-factor authentication is enabled by default. However, this is enforced only when two-factor authentication is configured and active. This blocks access to web administrator console for ssmcadmin as this is a local account authenticated using password credentials. To allow access to administrator console, disable this strict two-factor authentication setting.
SRG-APP-000358-WSR-000063
1 Rule
SSMC web server must not impede the ability to write specified log record content to an audit log server.
Medium Severity
Writing events to a centralized management audit system offers many benefits to the enterprise over having dispersed logs. Centralized management of audit records and logs provides for efficiency in maintenance and management of records, enterprise analysis of events, and backup and archiving of event records enterprise-wide. The web server and related components are required to be capable of writing logs to centralized audit log servers.
SRG-APP-000089-WSR-000047
1 Rule
SSMC web server must generate, at a minimum, log records for system startup and shutdown, system access, and system authentication events.
Medium Severity
Log records can be generated from various components within the web server (e.g., httpd, plug-ins to external backends, etc.). From a web server perspective, certain specific web server functionalities may be logged as well. The web server must allow the definition of what events are to be logged. As conditions change, the number and types of events to be logged may change, and the web server must be able to facilitate these changes. The minimum list of logged events should be those pertaining to system startup and shutdown, system access, and system authentication events. If these events are not logged at a minimum, any type of forensic investigation would be missing pertinent information needed to replay what occurred. Satisfies: SRG-APP-000089-WSR-000047, SRG-APP-000093-WSR-000053, SRG-APP-000095-WSR-000056, SRG-APP-000096-WSR-000057, SRG-APP-000097-WSR-000058, SRG-APP-000098-WSR-000059, SRG-APP-000099-WSR-000061, SRG-APP-000092-WSR-000055
SRG-APP-000092-WSR-000055
1 Rule
SSMC web server must initiate session logging upon start up.
Medium Severity
An attacker can compromise a web server during the startup process. If logging is not initiated until all the web server processes are started, key information may be missed and not available during a forensic investigation. To assure all loggable events are captured, the web server must begin logging once the first web server process is initiated.
SRG-APP-000108-WSR-000166
1 Rule
SSMC web server must use a logging mechanism that is configured to alert the ISSO and SA in the event of a processing failure.
Medium Severity
Reviewing log data allows an investigator to recreate the path of an attacker and to capture forensic data for later use. Log data is also essential to system administrators in their daily administrative duties on the hosted system or within the hosted applications. If the logging system begins to fail, events will not be recorded. Organizations must define logging failure events, at which time the application or the logging mechanism the application utilizes will provide a warning to the ISSO and SA at a minimum.
SRG-APP-000179-WSR-000111
1 Rule
The SSMC web server must use cryptographic modules that meet the requirements of applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance for such authentication.
High Severity
Encryption is only as good as the encryption modules utilized. Unapproved cryptographic module algorithms cannot be verified and cannot be relied upon to provide confidentiality or integrity, and DOD data may be compromised due to weak algorithms. FIPS 140-2 is the current standard for validating cryptographic modules and NSA Type-X (where X=1, 2, 3, 4) products are NSA-certified, hardware-based encryption modules. The web server must provide FIPS-compliant encryption modules when authenticating users and processes. Satisfies: SRG-APP-000179-WSR-000111, SRG-APP-000014-WSR-000006, SRG-APP-000015-WSR-000014, SRG-APP-000179-WSR-000110, SRG-APP-000224-WSR-000135, SRG-APP-000224-WSR-000136, SRG-APP-000224-WSR-000139, SRG-APP-000416-WSR-000118, SRG-APP-000439-WSR-000156, SRG-APP-000441-WSR-000181, SRG-APP-000442-WSR-000182