Arcserve UDP from version 7.0 to 9.0 allows authentication bypass. The method getVersionInfo in WebServiceImpl/services/FlashServiceImpl exposes the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. It is also possible to obtain administrator credentials.
The vulnerability exists due to application does not properly impose security restrictions in Windows Error Reporting Service, which leads to security restrictions bypass and privilege escalation and allows a local user (non included in Administrator group) to escalate privileges to NT AUTHORITY/SYSTEM.

This version adds BOF support.
A critical vulnerability, identified and cataloged as CVE-2023-38831, has been discovered. This vulnerability allows attackers to create modified RAR or ZIP archives that contain both harmless files and malicious ones. The malicious files are typically scripts located within a folder that shares the same name as the harmless file.



WinRAR RCE before versions 6.23