The Security Token Service must have Multipurpose Internet Mail Extensions (MIME) that invoke OS shell programs disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-239663 | VCST-67-000012 | SV-239663r679061_rule | Medium |
| Description |
|---|
| MIME mappings tell the Security Token Service what type of program various file types and extensions are and what external utilities or programs are needed to execute the file type. By ensuring that various shell script MIME types are not included in "web.xml", the server is protected against malicious users tricking the server into executing shell command files. |
| STIG | Date |
|---|---|
| VMware vSphere 6.7 STS Tomcat Security Technical Implementation Guide | 2021-04-15 |
Details
| Check Text ( C-42896r679059_chk ) |
|---|
| At the command prompt, execute the following command: # grep -En '(x-csh<)|(x-sh<)|(x-shar<)|(x-ksh<)' /usr/lib/vmware-sso/vmware-sts/conf/web.xml If the command produces any output, this is a finding. |
| Fix Text (F-42855r679060_fix) |
|---|
| Open /usr/lib/vmware-sso/vmware-sts/conf/web.xml in a text editor. Remove any and all of the following nodes lines: |