Microsoft Exchange 2019 Edge Server Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000261
<GroupDescription></GroupDescription>Group -
Exchange must have anti-spam filtering enabled.
<VulnDiscussion>Originators of spam messages are constantly changing their techniques to defeat spam countermeasures; therefore, spam softwar...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
Exchange must have anti-spam filtering configured.
<VulnDiscussion>Originators of spam messages are constantly changing their techniques to defeat spam countermeasures; therefore, spam softwar...Rule Medium Severity -
SRG-APP-000261
<GroupDescription></GroupDescription>Group -
Exchange Sender Identification Framework must be enabled.
<VulnDiscussion>Email is only as secure as the recipient. When the recipient is an email server accepting inbound messages, authenticating th...Rule Medium Severity -
SRG-APP-000295
<GroupDescription></GroupDescription>Group -
Exchange must limit the Receive connector timeout.
<VulnDiscussion>Email system availability depends in part on best practices strategies for setting tuning. This configuration controls the nu...Rule Medium Severity -
SRG-APP-000340
<GroupDescription></GroupDescription>Group -
Role-Based Access Control must be defined for privileged and nonprivileged users.
<VulnDiscussion>Role Based Access Control (RBAC) is the permissions model used in Microsoft Exchange Server 2013, 2016, and 2019. With RBAC, ...Rule Medium Severity -
SRG-APP-000378
<GroupDescription></GroupDescription>Group -
The Exchange application directory must be protected from unauthorized access.
<VulnDiscussion>Default product installations may provide more generous access permissions than are necessary to run the application. By exam...Rule Medium Severity -
SRG-APP-000380
<GroupDescription></GroupDescription>Group -
The Exchange software baseline copy must exist.
<VulnDiscussion>Exchange software, as with other application software installed on a host system, must be included in a system baseline recor...Rule Medium Severity -
SRG-APP-000381
<GroupDescription></GroupDescription>Group -
The Exchange local machine policy must require signed scripts.
<VulnDiscussion>Scripts, especially those downloaded from untrusted locations, often provide a way for attackers to infiltrate a system. By s...Rule Medium Severity -
SRG-APP-000383
<GroupDescription></GroupDescription>Group -
Exchange services must be documented, and unnecessary services must be removed or disabled.
<VulnDiscussion>Unneeded but running services offer attackers an enhanced attack profile, and attackers are constantly watching to discover o...Rule Medium Severity -
SRG-APP-000424
<GroupDescription></GroupDescription>Group -
The Exchange Edge server must point to a trusted list of DNS servers for external and internal resolution.
<VulnDiscussion>To mitigate the risk of possible erroneous queries that may have been coopted by bad actors, the Exchange Edge server must us...Rule Medium Severity
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