III - Administrative Public
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000224
<GroupDescription></GroupDescription>Group -
The web server must generate a session ID long enough that it cannot be guessed through brute force.
<VulnDiscussion>Generating a session identifier (ID) that is not easily guessed through brute force is essential to deter several types of se...Rule Medium Severity -
SRG-APP-000224
<GroupDescription></GroupDescription>Group -
The web server must generate a session ID using as much of the character set as possible to reduce the risk of brute force.
<VulnDiscussion>Generating a session identifier (ID) that is not easily guessed through brute force is essential to deter several types of se...Rule Medium Severity -
SRG-APP-000224
<GroupDescription></GroupDescription>Group -
The web server must generate unique session identifiers with definable entropy.
<VulnDiscussion>Generating a session identifier (ID) that is not easily guessed through brute force is essential to deter several types of se...Rule Medium Severity -
SRG-APP-000225
<GroupDescription></GroupDescription>Group -
The web server must augment re-creation to a stable and known baseline.
<VulnDiscussion>Making certain that the web server has not been updated by an unauthorized user is always a concern. Adding patches, function...Rule Medium Severity -
SRG-APP-000225
<GroupDescription></GroupDescription>Group -
The web server must be built to fail to a known safe state if system initialization fails, shutdown fails, or aborts fail.
<VulnDiscussion>Determining a safe state for failure and weighing that against a potential DoS for users depends on what type of application ...Rule Medium Severity -
SRG-APP-000225
<GroupDescription></GroupDescription>Group -
The web server must provide a clustering capability.
<VulnDiscussion>The web server may host applications that display information that cannot be disrupted, such as information that is time-crit...Rule Medium Severity -
SRG-APP-000231
<GroupDescription></GroupDescription>Group -
Information at rest must be encrypted using a DoD-accepted algorithm to protect the confidentiality and integrity of the information.
<VulnDiscussion>Data at rest is inactive data which is stored physically in any digital form (e.g., databases, data warehouses, spreadsheets,...Rule Medium Severity -
SRG-APP-000233
<GroupDescription></GroupDescription>Group -
The web server document directory must be in a separate partition from the web servers system files.
<VulnDiscussion>A web server is used to deliver content on the request of a client. The content delivered to a client must be controlled, all...Rule Medium Severity -
SRG-APP-000246
<GroupDescription></GroupDescription>Group -
The web server must restrict the ability of users to launch Denial of Service (DoS) attacks against other information systems or networks.
<VulnDiscussion>A web server can limit the ability of the web server being used in a DoS attack through several methods. The methods employed...Rule Medium Severity -
SRG-APP-000251
<GroupDescription></GroupDescription>Group -
The web server must limit the character set used for data entry.
<VulnDiscussion>Invalid user input occurs when a user inserts data or characters into a hosted application's data entry field and the hosted ...Rule Medium Severity -
SRG-APP-000266
<GroupDescription></GroupDescription>Group -
The web server must display a default hosted application web page, not a directory listing, when a requested web page cannot be found.
<VulnDiscussion>The goal is to completely control the web user's experience in navigating any portion of the web document root directories. E...Rule Medium Severity -
SRG-APP-000266
<GroupDescription></GroupDescription>Group -
Warning and error messages displayed to clients must be modified to minimize the identity of the web server, patches, loaded modules, and directory paths.
<VulnDiscussion>Information needed by an attacker to begin looking for possible vulnerabilities in a web server includes any information abou...Rule Medium Severity -
SRG-APP-000266
<GroupDescription></GroupDescription>Group -
Debugging and trace information used to diagnose the web server must be disabled.
<VulnDiscussion>Information needed by an attacker to begin looking for possible vulnerabilities in a web server includes any information abou...Rule Medium Severity -
SRG-APP-000295
<GroupDescription></GroupDescription>Group -
The web server must set an absolute session timeout value of eight hours or less.
<VulnDiscussion>Leaving sessions open indefinitely is a major security risk. An attacker can easily use an already authenticated session to a...Rule Medium Severity -
SRG-APP-000295
<GroupDescription></GroupDescription>Group -
The web server must set an inactive timeout for sessions.
<VulnDiscussion>Leaving sessions open indefinitely is a major security risk. An attacker can easily use an already authenticated session to a...Rule Medium Severity -
SRG-APP-000315
<GroupDescription></GroupDescription>Group -
Remote access to the web server must follow access policy or work in conjunction with enterprise tools designed to enforce policy requirements.
<VulnDiscussion>Remote access to the web server is any access that communicates through an external, non-organization-controlled network. Rem...Rule Medium Severity -
SRG-APP-000315
<GroupDescription></GroupDescription>Group -
The web server must restrict inbound connections from nonsecure zones.
<VulnDiscussion>Remote access to the web server is any access that communicates through an external, non-organization-controlled network. Rem...Rule Medium Severity -
SRG-APP-000316
<GroupDescription></GroupDescription>Group -
The web server must provide the capability to immediately disconnect or disable remote access to the hosted applications.
<VulnDiscussion>During an attack on the web server or any of the hosted applications, the system administrator may need to disconnect or disa...Rule Medium Severity -
SRG-APP-000340
<GroupDescription></GroupDescription>Group -
Non-privileged accounts on the hosting system must only access web server security-relevant information and functions through a distinct administrative account.
<VulnDiscussion>By separating web server security functions from non-privileged users, roles can be developed that can then be used to admini...Rule Medium Severity -
SRG-APP-000357
<GroupDescription></GroupDescription>Group -
The web server must use a logging mechanism that is configured to allocate log record storage capacity large enough to accommodate the logging requirements of the web server.
<VulnDiscussion>In order to make certain that the logging mechanism used by the web server has sufficient storage capacity in which to write ...Rule Medium Severity -
SRG-APP-000358
<GroupDescription></GroupDescription>Group -
The web server must not impede the ability to write specified log record content to an audit log server.
<VulnDiscussion>Writing events to a centralized management audit system offers many benefits to the enterprise over having dispersed logs. Ce...Rule Medium Severity -
SRG-APP-000358
<GroupDescription></GroupDescription>Group -
The web server must be configurable to integrate with an organizations security infrastructure.
<VulnDiscussion>A web server will typically utilize logging mechanisms for maintaining a historical log of activity that occurs within a host...Rule Medium Severity -
SRG-APP-000359
<GroupDescription></GroupDescription>Group -
The web server must use a logging mechanism that is configured to provide a warning to the ISSO and SA when allocated record storage volume reaches 75% of maximum log record storage capacity.
<VulnDiscussion>It is critical for the appropriate personnel to be aware if a system is at risk of failing to process logs as required. Log p...Rule Medium Severity -
SRG-APP-000374
<GroupDescription></GroupDescription>Group -
The web server must generate log records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT).
<VulnDiscussion>If time stamps are not consistently applied and there is no common time reference, it is difficult to perform forensic analys...Rule Medium Severity -
SRG-APP-000375
<GroupDescription></GroupDescription>Group -
The web server must record time stamps for log records to a minimum granularity of one second.
<VulnDiscussion>Without sufficient granularity of time stamps, it is not possible to adequately determine the chronological order of records....Rule Medium Severity
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