Description
A vulnerability exists in the use of shared SPF records in multi-tenant hosting providers, allowing attackers to use network authorization to be abused to spoof the email identify of the sender.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected products
- Bird / FastmailCurrent – Current
- NetWin / NetWinCurrent – Current