CVE-2019-18625

An issue was discovered in Suricata 5.0.0

published January 6, 2020

CVSS
—
EPSS
2%
Percentile
77.3
In the wild
Unconfirmed
What it is

An issue was discovered in Suricata 5.0.0. It was possible to bypass/evade any tcp based signature by faking a closed TCP session using an evil server. After the TCP SYN packet, it is possible to inject a RST ACK and a FIN ACK packet with a bad TCP Timestamp option. The client will ignore the RST ACK and the FIN ACK packets because of the bad TCP Timestamp option. Both linux and windows client are ignoring the injected packets.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01724 · 77.3th percentile
Published
2020-01-06T20:09Z
EPSS history
Timeline
  • 06 JAN 20:09Z
    An issue was discovered in Suricata 5.0.0
    cvelistv5