A vulnerability has been reported in the windows installer (MSI) built with InstallScript custom action. This vulnerability may allow privilege escalation when invoked ‘repair’ of the MSI which has an InstallScript custom action.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Revenera_installshield | Flexera | * | 2021 (excluding) |
| Revenera_installshield | Flexera | 2021 (including) | 2021 (including) |
| Revenera_installshield | Flexera | 2021-r1 (including) | 2021-r1 (including) |
References
- http://seclists.org/fulldisclosure/2024/Apr/24
- https://community.flexera.com/t5/InstallShield-Knowledge-Base/CVE-2021-41526-Privilege-escalation-vulnerability-during-MSI/ta-p/218137/jump-to/first-unread-message
- https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0011/MNDT-2021-0011.md
- http://seclists.org/fulldisclosure/2024/Apr/24
- https://community.flexera.com/t5/InstallShield-Knowledge-Base/CVE-2021-41526-Privilege-escalation-vulnerability-during-MSI/ta-p/218137/jump-to/first-unread-message
- https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0011/MNDT-2021-0011.md