Check: VCEM-67-000026
VMware vSphere 6.7 EAM Tomcat STIG:
VCEM-67-000026
(in versions v1 r4 through v1 r2)
Title
ESX Agent Manager must have the debug option turned off. (Cat II impact)
Discussion
Information needed by an attacker to begin looking for possible vulnerabilities in a web server includes any information about the web server and plug-ins or modules being used. When debugging or trace information is enabled in a production web server, information about the web server, such as web server type, version, patches installed, plug-ins and modules installed, type of code being used by the hosted application, and any backends being used for data storage may be displayed. Because this information may be placed in logs and general messages during normal operation of the web server, an attacker does not need to cause an error condition to gain this information. ESX Agent Manager can be configured to set the debugging level. By setting the debugging level to zero (0), no debugging information will be provided to a malicious user.
Check Content
At the command prompt, execute the following command: # xmllint --format /usr/lib/vmware-eam/web/webapps/eam/WEB-INF/web.xml | sed 's/xmlns=".*"//g' | xmllint --xpath '//param-name[text()="debug"]/parent::init-param' - Expected result: <init-param> <param-name>debug</param-name> <param-value>0</param-value> </init-param> OR XPath set is empty If the output does not match the expected result, this is a finding. If no lines are returned, this is NOT a finding.
Fix Text
Navigate to and open: /usr/lib/vmware-eam/web/webapps/eam/WEB-INF/web.xml Navigate to all <debug> nodes that are not set to "0". Set the <param-value> to "0" in all <param-name>debug</param-name> nodes. Note: The debug setting should look like the following: <init-param> <param-name>debug</param-name> <param-value>0</param-value> </init-param>
Additional Identifiers
Rule ID: SV-239397r879655_rule
Vulnerability ID: V-239397
Group Title: SRG-APP-000266-WSR-000160
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001312 |
The information system generates error messages that provide information necessary for corrective actions without revealing information that could be exploited by adversaries. |
Controls
Number | Title |
---|---|
SI-11 |
Error Handling |