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V.T. Eric Layton

New Linux Vulnerability Lets Attackers Hijack VPN Connections

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sunrat

I predict that will be fixed before you can count to Jack Robinson.

 

No VPN here, and no "loose" setting in sysctl.conf either. I didn't see a way in either of those articles to actually test vulnerability.

There is a setting commented out which is said to mitigate this if you uncomment:

# Uncomment the next two lines to enable Spoof protection (reverse-path filter)
# Turn on Source Address Verification in all interfaces to
# prevent some spoofing attacks
#net.ipv4.conf.default.rp_filter=1
#net.ipv4.conf.all.rp_filter=1

 

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securitybreach

Well the vulnerability was found in the lab and there is no indication that it was ever used in the wild either. Also:

 

Quote

The research team is planning to publish a paper with an in-depth analysis of this vulnerability and its implications but only after finding an adequate workaround.

 

BTW systemd was just updated on arch the same day  that this came out (yesterday...12/04/19)

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securitybreach

You can bet that this will be resolved in days.

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