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| author | Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> | 2012-08-31 09:55:53 +0000 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-09-09 22:13:30 +0200 |
| commit | 64f509ce71b08d037998e93dd51180c19b2f464c (patch) | |
| tree | 3ccafa55245faaa0580e86f705548bbfe6cf3108 /kernel/timeconst.pl | |
| parent | 0626af3139572610b56376580d11eb65d45d9dd7 (diff) | |
| download | linux-64f509ce71b08d037998e93dd51180c19b2f464c.tar.bz2 | |
netfilter: Mark SYN/ACK packets as invalid from original direction
Clients should not send such packets. By accepting them, we open
up a hole by wich ephemeral ports can be discovered in an off-path
attack.
See: "Reflection scan: an Off-Path Attack on TCP" by Jan Wrobel,
http://arxiv.org/abs/1201.2074
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'kernel/timeconst.pl')
0 files changed, 0 insertions, 0 deletions