Fix handling v3 packets in 4.x branch

NagiosEnterprises / nrpe

NRPE Agent

GNU General Public License v2.0

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Fix handling v3 packets in 4.x branch #277

Closed rpv-tomsk closed 3 weeks ago

rpv-tomsk commented 1 year ago

Most code of 4.x branch supports NRPE_PACKET_VERSION_3 and only small minor flaws breaks it.

Closes: #233

sawolf commented 3 weeks ago

Hi @rpv-tomsk, thanks for the patch. We intentionally reject NRPE v3 traffic due to security concerns (incorrect CRC calculation and packet size calculation, among other things).