STIGQter: STIG Summary: VMware vSphere 8.0 vCenter Appliance User Interface (UI) Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 01 Jul 2026:

The vCenter UI service must disable "ALLOW_BACKSLASH".

DISA Rule

SV-259133r961863_rule

Vulnerability Number

V-259133

Group Title

SRG-APP-000516-AS-000237

Rule Version

VCUI-80-000151

Severity

CAT II

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Navigate to and open:

/usr/lib/vmware-vsphere-ui/server/conf/catalina.properties

Update or remove the following line:

org.apache.catalina.connector.ALLOW_BACKSLASH=false

Restart the service with the following command:

# vmon-cli --restart vsphere-ui

Check Contents

At the command line, run the following command:

# grep ALLOW_BACKSLASH /usr/lib/vmware-vsphere-ui/server/conf/catalina.properties

Example result:

org.apache.catalina.connector.ALLOW_BACKSLASH=false

If "org.apache.catalina.connector.ALLOW_BACKSLASH" is not set to "false", this is a finding.

If the "org.apache.catalina.connector.ALLOW_BACKSLASH" setting does not exist, this is not a finding.

Vulnerability Number

V-259133

Documentable

False

Rule Version

VCUI-80-000151

Severity Override Guidance

At the command line, run the following command:

# grep ALLOW_BACKSLASH /usr/lib/vmware-vsphere-ui/server/conf/catalina.properties

Example result:

org.apache.catalina.connector.ALLOW_BACKSLASH=false

If "org.apache.catalina.connector.ALLOW_BACKSLASH" is not set to "false", this is a finding.

If the "org.apache.catalina.connector.ALLOW_BACKSLASH" setting does not exist, this is not a finding.

Check Content Reference

M

Target Key

5568