Veeam warns of critical RCE flaw in Backup & Replication software
Veeam has released security updates for several of its products as part of a single September 2024 security bulletin that addresses 18 high and critical severity flaws in Veeam Backup & Replication, Service Provider Console, and One.
Delaying security updates and neglecting regular reviews created vulnerabilities that were exploited by attackers, resulting in severe ransomware consequences. Initial access via FortiGate Firewall SSL VPN using a dormant account Deployed persistent backdoor (“svchost.exe”) on the failover server, and conducted lateral movement via RDP. Exploitation attempts of CVE-2023-27532 was followed by activation of xp_cmdshell and rogue user account creation. Threat actors made use of NetScan, AdFind, and various tools provided by NirSoft to conduct network discovery, enumeration, and credential harvesting. * Windows Defender was permanently disabled using DC.exe, followed by ransomware deployment and execution with PsExec.exe.
