STIGQter: STIG Summary: VMware vSphere 7.0 vCenter Appliance UI Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 26 Jul 2023:

vSphere UI must limit the number of allowed connections.

DISA Rule

SV-256797r889390_rule

Vulnerability Number

V-256797

Group Title

SRG-APP-000246-WSR-000149

Rule Version

VCUI-70-000020

Severity

CAT II

CCI(s)

• CCI-001094 - Restrict the ability of individuals to launch organization-defined denial of service attacks against other systems.

Weight

10

Fix Recommendation

Navigate to and open:

/usr/lib/vmware-vsphere-ui/server/conf/server.xml

Navigate to the <Connector> configured with port="${http.port}".

Add or change the following value:

acceptCount="300"

Restart the service with the following command:

# vmon-cli --restart vsphere-ui

Check Contents

At the command prompt, run the following command:

# xmllint --xpath '/Server/Service/Connector[@port="${http.port}"]/@acceptCount' /usr/lib/vmware-vsphere-ui/server/conf/server.xml

Expected result:

acceptCount="300"

If the output does not match the expected result, this is a finding.

Vulnerability Number

V-256797

Documentable

False

Rule Version

VCUI-70-000020

Severity Override Guidance

At the command prompt, run the following command:

# xmllint --xpath '/Server/Service/Connector[@port="${http.port}"]/@acceptCount' /usr/lib/vmware-vsphere-ui/server/conf/server.xml

Expected result:

acceptCount="300"

If the output does not match the expected result, this is a finding.

Check Content Reference

M

Target Key

5528