Mainframe Product Security Requirements Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000700
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SRG-APP-000001
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The Mainframe Product must limit the number of concurrent sessions to three for all accounts and/or account types.
Application management includes the ability to control the number of users and user sessions that utilize an application. Limiting the number of allowed users and sessions per user is helpful in li...Rule Medium Severity -
SRG-APP-000002
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SRG-APP-000003
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SRG-APP-000004
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SRG-APP-000005
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The Mainframe Product must retain the session lock until the user reestablishes access using established identification and authentication procedures.
A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system, but does not want to log out because of the temporar...Rule Medium Severity -
SRG-APP-000023
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SRG-APP-000024
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SRG-APP-000025
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The Mainframe Product must automatically disable accounts after 35 days of account inactivity.
Attackers that are able to exploit an inactive account can potentially obtain and maintain undetected access to an application. Owners of inactive accounts will not notice if unauthorized access to...Rule Medium Severity -
SRG-APP-000026
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SRG-APP-000027
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The Mainframe Product must automatically audit account modification.
Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of re-establishing access. One way to accomplish this is for the attacker to simpl...Rule Medium Severity -
SRG-APP-000028
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SRG-APP-000029
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SRG-APP-000033
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The Mainframe Product must enforce approved authorizations for logical access to sensitive information and system resources in accordance with applicable access control policies.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., networks, web servers, and web porta...Rule Medium Severity -
SRG-APP-000033
Group -
The Mainframe Product must enforce approved authorizations for security administrator access to sensitive information and system resources in accordance with applicable access control policies.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., networks, web servers, and web porta...Rule Medium Severity -
SRG-APP-000033
Group -
The Mainframe Product must enforce approved authorizations for system programmer access to sensitive information and system resources in accordance with applicable access control policies.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., networks, web servers, and web porta...Rule Medium Severity -
SRG-APP-000038
Group -
SRG-APP-000065
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The Mainframe Product must enforce the limit of three consecutive invalid logon attempts by a user during a 15 minute time period.
By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute forcing, is reduced. Limits are imposed by locking the a...Rule Medium Severity -
SRG-APP-000073
Group -
Mainframe Products scanning for malicious code must scan all media used for system maintenance prior to use.
There are security-related issues arising from software brought into the information system specifically for diagnostic and repair actions (e.g., a software packet sniffer installed on a system in ...Rule Medium Severity -
SRG-APP-000080
Group -
The Mainframe Product must protect against an individual (or process acting on behalf of an individual) falsely denying having performed actions defined in the site security plan to be covered by non-repudiation.
Without non-repudiation, it is impossible to positively attribute an action to an individual (or process acting on behalf of an individual). Non-repudiation services can be used to determine if in...Rule Medium Severity -
SRG-APP-000086
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SRG-APP-000089
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SRG-APP-000090
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The Mainframe Product must allow only the information system security manager (ISSM) or individuals or roles appointed by the ISSM to select which auditable events are to be audited.
Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured audi...Rule Medium Severity -
SRG-APP-000091
Group -
SRG-APP-000092
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The Mainframe Product must initiate session auditing upon startup.
If auditing is enabled late in the start-up process, the actions of some start-up processes may not be audited. Some audit systems also maintain state information only available if auditing is enab...Rule Medium Severity -
SRG-APP-000095
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SRG-APP-000096
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The Mainframe Product must produce audit records containing information to establish when (date and time) the events occurred.
Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events relating to an incident. In order to compile an accurate risk assessment, and provid...Rule Medium Severity -
SRG-APP-000097
Group -
The Mainframe Product must produce audit records containing information to establish where the events occurred.
Without establishing where events occurred, it is impossible to establish, correlate, and investigate the events relating to an incident. In order to compile an accurate risk assessment, and provi...Rule Medium Severity -
SRG-APP-000098
Group -
SRG-APP-000099
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SRG-APP-000100
Group -
The Mainframe Product must generate audit records containing information to establish the identity of any individual or process associated with the event.
Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associated with the events, security personnel cannot determine responsibility...Rule Medium Severity -
SRG-APP-000101
Group -
SRG-APP-000108
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The Mainframe Product must alert the system administrator (SA) and information system security officer (ISSO) (at a minimum) in the event of an audit processing failure.
It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an ...Rule Medium Severity -
SRG-APP-000111
Group
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