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Merge remote-tracking branch 'origin/master'

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Patrick Schleizer 2019-12-05 15:46:19 -05:00
commit 19add3299c
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2 changed files with 8 additions and 2 deletions
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5
debian/control vendored
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@ -43,8 +43,9 @@ Description: enhances misc security settings
* The TCP/IP stack is hardened by disabling ICMP redirect acceptance,
ICMP redirect sending and source routing to prevent man-in-the-middle attacks,
ignoring all ICMP requests, enabling TCP syncookies to prevent SYN flood
attacks and enabling RFC1337 to protect against time-wait assassination
attacks.
attacks, enabling RFC1337 to protect against time-wait assassination
attacks and enabling reverse path filtering to prevent IP spoofing and
mitigate vulnerabilities such as CVE-2019-14899.
.
* Some data spoofing attacks are made harder.
.

5
etc/sysctl.d/tcp_hardening.conf
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@ -33,4 +33,9 @@ net.ipv4.tcp_syncookies=1
net.ipv4.conf.all.accept_source_route=0
net.ipv4.conf.default.accept_source_route=0
## Enable reverse path filtering to prevent IP spoofing and
## mitigate vulnerabilities such as CVE-2019-14899.
net.ipv4.conf.default.rp_filter=1
net.ipv4.conf.all.rp_filter=1
#### meta end