Free DISA STIG and SRG Library | Vaulted

Microsoft Publisher 2013 STIG

Version 1 Release 5
2018-04-27
U_MS_Publisher_2013_STIG_V1R5_Manual-xccdf.xml
The Microsoft Publisher 2013 Security Technical Implementation Guide (STIG) is published as a tool to improve the security of Department of Defense (DoD) information systems. Comments or proposed revisions to this document should be sent via e-mail to the following address: disa.stig_spt@mail.mil.

Vulnerabilities (15)

Disabling of user name and password syntax from being used in URLs must be enforced.

Finding ID
DTOO104
Rule ID
SV-53235r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO104 - Disable user name and password
CCI
CCI-001170
Target Key
(None)
Documentable
No
Discussion

The Uniform Resource Locator (URL) standard allows user authentication to be included in URL strings in the form http://username:password@example.com. A malicious user might use this URL syntax to create a hyperlink that appears to open a legitimate website but actually opens a deceptive (spoofed) website. For example, the URL http://www.wingtiptoys.com@example.com appears to open http://www.wingtiptoys.com but actually opens http://example.com. To protect users from such attacks, Internet Explorer usually blocks any URLs using this syntax. This functionality can be controlled separately for instances of Internet Explorer spawned by Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a web page). If user names and passwords in URLs are allowed, users could be diverted to dangerous web pages, which would pose a security risk.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Disable user name and password" to "Enabled" and place a check in the 'mspub.exe' check box.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Disable user name and password" must be "Enabled" and a check in the 'mspub.exe' check box must be present. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_HTTP_USERNAME_PASSWORD_DISABLE Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

Links that invoke instances of Internet Explorer from within an Office product must be blocked.

Finding ID
DTOO129
Rule ID
SV-53242r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO129 - Block Pop-Ups
CCI
CCI-001662
Target Key
(None)
Documentable
No
Discussion

The Pop-up Blocker feature in Internet Explorer can be used to block most unwanted pop-up and pop-under windows from appearing. This functionality can be controlled separately for instances of Internet Explorer spawned by Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a web page). If the Pop-up Blocker is disabled, disruptive and potentially dangerous pop-up windows could load and present a security risk.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Block popups" to "Enabled" and select 'mspub.exe'.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Block popups" must be "Enabled" and 'mspub.exe' is checked. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_WEBOC_POPUPMANAGEMENT Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

Trust Bar Notifications for unsigned application add-ins must be blocked.

Finding ID
DTOO131
Rule ID
SV-53243r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO131 - Trust Bar Notifications
CCI
CCI-001749
Target Key
(None)
Documentable
No
Discussion

If an application is configured to require all add-ins to be signed by a trusted publisher, any unsigned add-ins the application loads will be disabled and the application will display the Trust Bar at the top of the active window. The Trust Bar contains a message informing users about the unsigned add-in. If a user is allowed to make the determination to allow an unsigned add-in, it increases the risk of malicious code being introduced onto the user's computer or the network.

Fix Text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security -> Trust Center "Disable Trust Bar Notification for unsigned application add-ins" to "Enabled".

Check Content

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security -> Trust Center "Disable Trust Bar Notification for unsigned application add-ins" must be "Enabled". Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\15.0\publisher\security Criteria: If the value NoTBPromptUnsignedAddin is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

Warning Bar settings for VBA macros must be configured.

Finding ID
DTOO304
Rule ID
SV-53248r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO304 - VBA Macro Warning settings
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

When users open files containing VBA Macros, applications open the files with the macros disabled and displays the Trust Bar with a warning that macros are present and have been disabled. Users may then enable these macros by clicking Options on the Trust Bar and selecting the option to enable them. Disabling or not configuring this setting may allow dangerous macros to become active on the user's computer or the network.

Fix Text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security -> Trust Center "VBA Macro Notification Settings" to "Enabled (Disabled all with notifications)".

Check Content

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security -> Trust Center "VBA Macro Notification Settings" must be "Enabled (Disabled all with notifications)". Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\15.0\publisher\security Criteria: If the value VBAWarnings is REG_DWORD = 2, this is not a finding.

Responsibility

System Administrator

Add-on Management functionality must be allowed.

Finding ID
DTOO126
Rule ID
SV-53240r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO126 - Add-on Management
CCI
CCI-001662
Target Key
(None)
Documentable
No
Discussion

Internet Explorer add-ons are pieces of code, run in Internet Explorer, to provide additional functionality. Rogue add-ons may contain viruses or other malicious code. Disabling or not configuring this setting could allow malicious code or users to become active on user computers or the network. For example, a malicious user can monitor and then use keystrokes users type into Internet Explorer. Even legitimate add-ons may demand resources, compromising the performance of Internet Explorer, and the operating systems for the user's computer.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Add-on Management" to "Enabled" and 'mspub.exe' is checked.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Add-on Management" is set to "Enabled" and 'mspub.exe' is checked. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_ADDON_MANAGEMENT Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

Protection from zone elevation must be enforced.

Finding ID
DTOO209
Rule ID
SV-53245r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO209 - Zone Elevation Protection
CCI
CCI-001695
Target Key
(None)
Documentable
No
Discussion

Internet Explorer places restrictions on each web page users can use the browser to open. Web pages on a user's local computer have the fewest security restrictions and reside in the Local Machine zone, making this security zone a prime target for malicious users and code. Disabling or not configuring this setting could allow pages in the Internet zone to navigate to pages in the Local Machine zone to then run code to elevate privileges. This could allow malicious code or users to become active on the user's computer or the network.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Protection From Zone Elevation" to "Enabled" and 'mspub.exe' is checked.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Protection From Zone Elevation" is set to "Enabled" and 'mspub.exe' is checked. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_ZONE_ELEVATION Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

ActiveX Installs must be configured for proper restriction.

Finding ID
DTOO211
Rule ID
SV-53246r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO211 - Restrict ActiveX Install
CCI
CCI-002460
Target Key
(None)
Documentable
No
Discussion

Microsoft ActiveX controls allow unmanaged, unprotected code to run on the user computers. ActiveX controls do not run within a protected container in the browser like the other types of HTML or Microsoft Silverlight-based controls. Disabling or not configuring this setting does not block prompts for ActiveX control installations and these prompts display to users. This could allow malicious code to become active on the user's computer or the network.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Restrict ActiveX Install" to "Enabled" and 'mspub.exe' is checked.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Restrict ActiveX Install" is set to "Enabled" and 'mspub.exe' is checked. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_RESTRICT_ACTIVEXINSTALL Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

File Downloads must be configured for proper restrictions.

Finding ID
DTOO132
Rule ID
SV-53244r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO132 - Restrict File Download
CCI
CCI-001169
Target Key
(None)
Documentable
No
Discussion

Disabling this setting allows websites to present file download prompts via code without the user specifically initiating the download. User preferences may also allow the download to occur without prompting or interaction with the user. Even if Internet Explorer prompts the user to accept the download, some websites abuse this functionality. Malicious websites may continually prompt users to download a file or present confusing dialog boxes to trick users into downloading or running a file. If the download occurs and it contains malicious code, the code could become active on the user's computer or the network.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Restrict File Download" to "Enabled" and 'mspub.exe' is checked.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Restrict File Download" is set to "Enabled" and 'mspub.exe' is checked. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_RESTRICT_FILEDOWNLOAD Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

Add-ins to Office applications must be signed by a Trusted Publisher.

Finding ID
DTOO127
Rule ID
SV-53241r2_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO127 - Add-ins are signed by Trusted Publisher
CCI
CCI-001749
Target Key
(None)
Documentable
No
Discussion

Office 2013 applications do not check the digital signature on application add-ins before opening them. Disabling or not configuring this setting may allow an application to load a dangerous add-in. As a result, malicious code could become active on the user's computer or the network.

Fix Text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security -> Trust Center "Require that application add-ins are signed by Trusted Publisher" to "Enabled".

Check Content

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security -> Trust Center "Require that application add-ins are signed by Trusted Publisher" is set to "Enabled". Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\15.0\publisher\security Criteria: If the value RequireAddinSig is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

Fatally corrupt files must be blocked from opening.

Finding ID
DTOO322
Rule ID
SV-53255r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO322 - Prompt files to open instead of blocking
CCI
CCI-001662
Target Key
(None)
Documentable
No
Discussion

Enabling this setting allows a user to open fatally corrupt Publisher 2013 files. As a result, malicious code or users could become active on the user's computer or the network. For example, a malicious user may purposely corrupt a Publisher file. The corrupted file could force the application to fail or execute malicious code, giving the malicious user control of Publisher 2013.

Fix Text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security "Prompt to allow fatally corrupt files to open instead of blocking them" to "Disabled".

Check Content

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security "Prompt to allow fatally corrupt files to open instead of blocking them" is set to "Disabled". Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\15.0\publisher Criteria: If the value PromptForBadFiles is REG_DWORD = 0, this is not a finding.

Responsibility

System Administrator

The Publisher Automation Security Level must be configured for high security.

Finding ID
DTOO323
Rule ID
SV-53256r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO323 - Publisher Automation Security Level
CCI
CCI-001170
Target Key
(None)
Documentable
No
Discussion

When a separate application is used to launch Publisher 2013 programmatically, any macros can run in the programmatically-opened application without being blocked. Disabling or not configuring this setting could allow a malicious user to use automation to run malicious code in Publisher 2013.

Fix Text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security "Publisher Automation Security Level" to "Enabled and High (Disabled)" is selected.

Check Content

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Publisher 2013 -> Security "Publisher Automation Security Level" is set to "Enabled and High (Disabled)" is selected. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\Common\Security Criteria: If the value AutomationSecurityPublisher is REG_DWORD = 3, this is not a finding.

Responsibility

System Administrator

The Internet Explorer Bind to Object functionality must be enabled.

Finding ID
DTOO111
Rule ID
SV-53236r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO111 - Enable IE Bind to Object
CCI
CCI-001695
Target Key
(None)
Documentable
No
Discussion

Internet Explorer performs a number of safety checks before initializing an ActiveX control. It will not initialize a control if the kill bit for the control is set in the registry, or if the security settings for the zone in which the control is located do not allow it to be initialized. This functionality can be controlled separately for instances of Internet Explorer spawned by Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a web page). A security risk could occur if potentially dangerous controls are allowed to load.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Bind to Object" to "Enabled" and place a check in the 'mspub.exe' check box.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Bind to Object" must be "Enabled" and a check in the 'mspub.exe' check box must be present. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_SAFE_BINDTOOBJECT Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

The Saved from URL mark must be selected to enforce Internet zone processing.

Finding ID
DTOO117
Rule ID
SV-53237r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO117 - Saved from URL
CCI
CCI-001170
Target Key
(None)
Documentable
No
Discussion

Typically, when Internet Explorer loads a web page from a Universal Naming Convention (UNC) share that contains a Mark of the Web (MOTW) comment, indicating the page was saved from a site on the Internet, Internet Explorer runs the page in the Internet security zone instead of the less restrictive Local Intranet security zone. This functionality can be controlled separately for instances of Internet Explorer spawned by Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a web page). If Internet Explorer does not evaluate the page for a MOTW, potentially dangerous code could be allowed to run.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Saved from URL" to "Enabled" and place a check in the 'mspub.exe' check box.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Saved from URL" must be "Enabled" and a check in the 'mspub.exe' check box must be present. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_UNC_SAVEDFILECHECK Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

Navigation to URLs embedded in Office products must be blocked.

Finding ID
DTOO123
Rule ID
SV-53238r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO123 - Block Navigation to URL from Office
CCI
CCI-001170
Target Key
(None)
Documentable
No
Discussion

To protect users from attacks, Internet Explorer usually does not attempt to load malformed URLs. This functionality can be controlled separately for instances of Internet Explorer spawned by Office applications (for example, if a user clicks a link in an Office document or selects a menu option that loads a web page). If Internet Explorer attempts to load a malformed URL, a security risk could occur.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Navigate URL" to "Enabled" and place a check in the 'mspub.exe' check box.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Navigate URL" must be "Enabled" and a check in the 'mspub.exe' check box must be present. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_VALIDATE_NAVIGATE_URL Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator

Scripted Window Security must be enforced.

Finding ID
DTOO124
Rule ID
SV-53239r1_rule
Severity
Cat II
CCE
(None)
Group Title
DTOO124 - Scripted Window Security
CCI
CCI-001695
Target Key
(None)
Documentable
No
Discussion

Malicious websites often try to confuse or trick users into giving a site permission to perform an action allowing the site to take control of the users' computer in some manner. Disabling or not configuring this setting allows unknown websites to: -Create browser windows appearing to be from the local operating system. -Draw active windows displaying outside of the viewable areas of the screen capturing keyboard input. -Overlay parent windows with their own browser windows to hide important system information, choices or prompts.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Scripted Window Security Restrictions" to "Enabled" and 'mspub.exe' is checked.

Check Content

Verify the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2013 (Machine) -> Security Settings -> IE Security "Scripted Window Security Restrictions" is set to "Enabled" and 'mspub.exe' is checked. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_WINDOW_RESTRICTIONS Criteria: If the value mspub.exe is REG_DWORD = 1, this is not a finding.

Responsibility

System Administrator