BGP hijack used to deliver malicious Virtualizor updates
Attackers used a Border Gateway Protocol hijack to reroute traffic from Virtualizor's software update service and deliver malicious updates to some servers. At least one hosting provider reported five of its 34 Virtualizor hypervisors were compromised, resulting in root account access for attackers. The incident occurred between August 28 and August 30. Virtualizor urged all operators to review their systems, as no complete list of affected installations exists.
- BGP hijack diverted Virtualizor update traffic
- Malicious updates delivered during the redirection window
- Attackers gained persistent root and created unauthorized account
- Virtualizor released a patch and scanning tool
- No cryptographic package signing was in place
Sources covering this
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