First published: Mon Aug 01 2005(Updated: )
The AES-XCBC-MAC algorithm in IPsec in FreeBSD 5.3 and 5.4, when used for authentication without other encryption, uses a constant key instead of the one that was assigned by the system administrator, which can allow remote attackers to spoof packets to establish an IPsec session.
Credit: secteam@freebsd.org
Affected Software | Affected Version | How to fix |
---|---|---|
FreeBSD FreeBSD | =5.4 | |
FreeBSD FreeBSD | =5.3 |
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