Privilege escalation in InstallShield

Vulnerability Description

Potential privilege escalation vulnerability in Revenera InstallShield versions 2022 R2 and 2021 R2 due to adding InstallScript custom action to a Basic MSI or InstallScript MSI project extracting few binaries to a predefined writable folder during installation time. The standard user account has write access to these files and folders, hence replacing them during installation time can lead to a DLL hijacking vulnerability.

References

• https://community.revenera.com/s/article/cve-2023-29080-security-patch-for-the-possible-privileged-escalation-scenarios-identified-in-installshield-nbsp