Title: FreeBSD 'sendfile(2)' Write-Only File Permission Security Bypass Vulnerability
Severity: LOW
Description:
The 'sendfile(2)' system call allows servers to efficiently transmit file contents over network sockets.
FreeBSD is prone to a security-bypass vulnerability because the software fails to validate file permissions. Specifically, the 'sendfile(2)' system call fails to check the file descriptor access before sending the content of the file over a network. This may allow attackers to send data from files with write-only permissions over a network.
Attackers can exploit this issue to obtain sensitive information that may lead to further attacks.
Affected Products:
- FreeBSD FreeBSD 5.5
- FreeBSD FreeBSD 6.2
- FreeBSD FreeBSD 6.3
- FreeBSD FreeBSD 7.0
References:
- FreeBSD: FreeBSD Homepage
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