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The vCenter UI service must configure the "setCharacterEncodingFilter" filter.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-259121VCUI-80-000127SV-259121r1210444_ruleCCI-001310medium
Description
Invalid user input occurs when a user inserts data or characters into a hosted application's data entry field and the hosted application is unprepared to process that data. This results in unanticipated application behavior, potentially leading to an application compromise. Invalid user input is one of the primary methods employed when attempting to compromise an application. An attacker can also enter Unicode characters into hosted applications in an effort to break out of the document home or root home directory or to bypass security checks. VMware uses the standard Tomcat "SetCharacterEncodingFilter" to provide a layer of defense against character encoding attacks. Filters are Java objects that perform filtering tasks on the request to a resource (a servlet or static content), on the response from a resource, or both.
STIGDate
VMware vSphere 8.0 vCenter Appliance User Interface (UI) Security Technical Implementation Guide2026-05-23

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (6) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
DCH-01Data Protection
1.00
IAC-21Least Privilege
1.00
NET-12Safeguarding Data Over Open Networks
0.50
TDA-18Input Data Validation
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (11) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AU-10(1)Association of Identities
1.00
AU-10(2)Validate Binding of Information Producer Identity
1.00
CM-6Configuration Settings
1.00
IA-5(2)Public Key-based Authentication
1.00
SC-13Cryptographic Protection
1.00
SC-20Secure Name/Address Resolution Service (Authoritative Source)
1.00
SC-20(2)Data Origin and Integrity
1.00
SC-21Secure Name/Address Resolution Service (Recursive or Caching Resolver)
1.00
SC-23Session Authenticity
1.00
SC-8(2)Pre- and Post-transmission Handling
1.00

+1 more (top 10 by confidence shown)

CCI1 mapping
CCI-001310
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.DS-10
1.00

Who does this work

7 NICE work roles and 7 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-259121r1210444_chk)

At the command prompt, run the following command: # xmllint --xpath "//*[contains(text(), 'setCharacterEncodingFilter')]/parent::*" /usr/lib/vmware-vsphere-ui/server/conf/web.xml Expected result: <filter-mapping> <filter-name>setCharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>setCharacterEncodingFilter</filter-name> <filter-class>org.apache.catalina.filters.SetCharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>ignore</param-name> <param-value>true</param-value> </init-param> </filter> If the output does not match the expected result, this is a finding.

Fix Text (F-62770r935266_fix)

Navigate to and open: /usr/lib/vmware-vsphere-ui/server/conf/web.xml Configure the <web-app> node with the child nodes listed below: <filter-mapping> <filter-name>setCharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>setCharacterEncodingFilter</filter-name> <filter-class>org.apache.catalina.filters.SetCharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>ignore</param-name> <param-value>true</param-value> </init-param> </filter> Restart the service with the following command: # vmon-cli --restart vsphere-ui