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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2021-45098

An issue was discovered in Suricata before 6.0.4. It is possible to bypass/evade any HTTP-based signature by faking an RST TCP packet with random TCP options of the md5header from the client side. After the three-way handshake, it's possible to inject an RST ACK with a random TCP md5header option. Then, the client can send an HTTP GET request with a forbidden URL. The server will ignore the RST ACK and send the response HTTP packet for the client's request. These packets will not trigger a Suricata reject action.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 61.7%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
Products affected by CVE-2021-45098
  • Oisf » Suricata » Version: N/A
    cpe:2.3:a:oisf:suricata:-
  • Oisf » Suricata » Version: 0.8.2
    cpe:2.3:a:oisf:suricata:0.8.2
  • Oisf » Suricata » Version: 1.0.0
    cpe:2.3:a:oisf:suricata:1.0.0
  • Oisf » Suricata » Version: 1.0.1
    cpe:2.3:a:oisf:suricata:1.0.1
  • Oisf » Suricata » Version: 1.0.2
    cpe:2.3:a:oisf:suricata:1.0.2
  • Oisf » Suricata » Version: 1.0.3
    cpe:2.3:a:oisf:suricata:1.0.3
  • Oisf » Suricata » Version: 1.0.4
    cpe:2.3:a:oisf:suricata:1.0.4
  • Oisf » Suricata » Version: 1.0.5
    cpe:2.3:a:oisf:suricata:1.0.5
  • Oisf » Suricata » Version: 1.1
    cpe:2.3:a:oisf:suricata:1.1
  • Oisf » Suricata » Version: 1.1.1
    cpe:2.3:a:oisf:suricata:1.1.1
  • Oisf » Suricata » Version: 1.2
    cpe:2.3:a:oisf:suricata:1.2
  • Oisf » Suricata » Version: 1.2.1
    cpe:2.3:a:oisf:suricata:1.2.1
  • Oisf » Suricata » Version: 1.3
    cpe:2.3:a:oisf:suricata:1.3
  • Oisf » Suricata » Version: 1.3.1
    cpe:2.3:a:oisf:suricata:1.3.1
  • Oisf » Suricata » Version: 1.3.2
    cpe:2.3:a:oisf:suricata:1.3.2
  • Oisf » Suricata » Version: 1.3.3
    cpe:2.3:a:oisf:suricata:1.3.3
  • Oisf » Suricata » Version: 1.3.4
    cpe:2.3:a:oisf:suricata:1.3.4
  • Oisf » Suricata » Version: 1.3.5
    cpe:2.3:a:oisf:suricata:1.3.5
  • Oisf » Suricata » Version: 1.3.6
    cpe:2.3:a:oisf:suricata:1.3.6
  • Oisf » Suricata » Version: 1.4
    cpe:2.3:a:oisf:suricata:1.4
  • Oisf » Suricata » Version: 1.4.1
    cpe:2.3:a:oisf:suricata:1.4.1
  • Oisf » Suricata » Version: 1.4.2
    cpe:2.3:a:oisf:suricata:1.4.2
  • Oisf » Suricata » Version: 1.4.3
    cpe:2.3:a:oisf:suricata:1.4.3
  • Oisf » Suricata » Version: 1.4.4
    cpe:2.3:a:oisf:suricata:1.4.4
  • Oisf » Suricata » Version: 1.4.5
    cpe:2.3:a:oisf:suricata:1.4.5
  • Oisf » Suricata » Version: 1.4.6
    cpe:2.3:a:oisf:suricata:1.4.6
  • Oisf » Suricata » Version: 1.4.7
    cpe:2.3:a:oisf:suricata:1.4.7
  • Oisf » Suricata » Version: 2.0
    cpe:2.3:a:oisf:suricata:2.0
  • Oisf » Suricata » Version: 2.0.1
    cpe:2.3:a:oisf:suricata:2.0.1
  • Oisf » Suricata » Version: 2.0.10
    cpe:2.3:a:oisf:suricata:2.0.10
  • Oisf » Suricata » Version: 2.0.11
    cpe:2.3:a:oisf:suricata:2.0.11
  • Oisf » Suricata » Version: 2.0.2
    cpe:2.3:a:oisf:suricata:2.0.2
  • Oisf » Suricata » Version: 2.0.3
    cpe:2.3:a:oisf:suricata:2.0.3
  • Oisf » Suricata » Version: 2.0.4
    cpe:2.3:a:oisf:suricata:2.0.4
  • Oisf » Suricata » Version: 2.0.5
    cpe:2.3:a:oisf:suricata:2.0.5
  • Oisf » Suricata » Version: 2.0.6
    cpe:2.3:a:oisf:suricata:2.0.6
  • Oisf » Suricata » Version: 2.0.7
    cpe:2.3:a:oisf:suricata:2.0.7
  • Oisf » Suricata » Version: 2.0.8
    cpe:2.3:a:oisf:suricata:2.0.8
  • Oisf » Suricata » Version: 2.0.9
    cpe:2.3:a:oisf:suricata:2.0.9
  • Oisf » Suricata » Version: 2.1
    cpe:2.3:a:oisf:suricata:2.1
  • Oisf » Suricata » Version: 3.0
    cpe:2.3:a:oisf:suricata:3.0
  • Oisf » Suricata » Version: 3.0.1
    cpe:2.3:a:oisf:suricata:3.0.1
  • Oisf » Suricata » Version: 3.0.2
    cpe:2.3:a:oisf:suricata:3.0.2
  • Oisf » Suricata » Version: 3.1
    cpe:2.3:a:oisf:suricata:3.1
  • Oisf » Suricata » Version: 3.1.1
    cpe:2.3:a:oisf:suricata:3.1.1
  • Oisf » Suricata » Version: 3.1.2
    cpe:2.3:a:oisf:suricata:3.1.2
  • Oisf » Suricata » Version: 3.1.3
    cpe:2.3:a:oisf:suricata:3.1.3
  • Oisf » Suricata » Version: 3.1.4
    cpe:2.3:a:oisf:suricata:3.1.4
  • Oisf » Suricata » Version: 3.2
    cpe:2.3:a:oisf:suricata:3.2
  • Oisf » Suricata » Version: 3.2.1
    cpe:2.3:a:oisf:suricata:3.2.1
  • Oisf » Suricata » Version: 3.2.2
    cpe:2.3:a:oisf:suricata:3.2.2
  • Oisf » Suricata » Version: 3.2.3
    cpe:2.3:a:oisf:suricata:3.2.3
  • Oisf » Suricata » Version: 3.2.4
    cpe:2.3:a:oisf:suricata:3.2.4
  • Oisf » Suricata » Version: 3.2.5
    cpe:2.3:a:oisf:suricata:3.2.5
  • Oisf » Suricata » Version: 4.0.0
    cpe:2.3:a:oisf:suricata:4.0.0
  • Oisf » Suricata » Version: 4.0.1
    cpe:2.3:a:oisf:suricata:4.0.1
  • Oisf » Suricata » Version: 4.0.2
    cpe:2.3:a:oisf:suricata:4.0.2
  • Oisf » Suricata » Version: 4.0.3
    cpe:2.3:a:oisf:suricata:4.0.3
  • Oisf » Suricata » Version: 4.0.4
    cpe:2.3:a:oisf:suricata:4.0.4
  • Oisf » Suricata » Version: 4.0.5
    cpe:2.3:a:oisf:suricata:4.0.5
  • Oisf » Suricata » Version: 4.0.6
    cpe:2.3:a:oisf:suricata:4.0.6
  • Oisf » Suricata » Version: 4.0.7
    cpe:2.3:a:oisf:suricata:4.0.7
  • Oisf » Suricata » Version: 4.1.0
    cpe:2.3:a:oisf:suricata:4.1.0
  • Oisf » Suricata » Version: 4.1.1
    cpe:2.3:a:oisf:suricata:4.1.1
  • Oisf » Suricata » Version: 4.1.10
    cpe:2.3:a:oisf:suricata:4.1.10
  • Oisf » Suricata » Version: 4.1.2
    cpe:2.3:a:oisf:suricata:4.1.2
  • Oisf » Suricata » Version: 4.1.3
    cpe:2.3:a:oisf:suricata:4.1.3
  • Oisf » Suricata » Version: 4.1.4
    cpe:2.3:a:oisf:suricata:4.1.4
  • Oisf » Suricata » Version: 4.1.5
    cpe:2.3:a:oisf:suricata:4.1.5
  • Oisf » Suricata » Version: 4.1.6
    cpe:2.3:a:oisf:suricata:4.1.6
  • Oisf » Suricata » Version: 4.1.7
    cpe:2.3:a:oisf:suricata:4.1.7
  • Oisf » Suricata » Version: 4.1.8
    cpe:2.3:a:oisf:suricata:4.1.8
  • Oisf » Suricata » Version: 4.1.9
    cpe:2.3:a:oisf:suricata:4.1.9
  • Oisf » Suricata » Version: 5.0.0
    cpe:2.3:a:oisf:suricata:5.0.0
  • Oisf » Suricata » Version: 5.0.1
    cpe:2.3:a:oisf:suricata:5.0.1
  • Oisf » Suricata » Version: 5.0.10
    cpe:2.3:a:oisf:suricata:5.0.10
  • Oisf » Suricata » Version: 5.0.2
    cpe:2.3:a:oisf:suricata:5.0.2
  • Oisf » Suricata » Version: 5.0.3
    cpe:2.3:a:oisf:suricata:5.0.3
  • Oisf » Suricata » Version: 5.0.4
    cpe:2.3:a:oisf:suricata:5.0.4
  • Oisf » Suricata » Version: 5.0.5
    cpe:2.3:a:oisf:suricata:5.0.5
  • Oisf » Suricata » Version: 5.0.6
    cpe:2.3:a:oisf:suricata:5.0.6
  • Oisf » Suricata » Version: 5.0.7
    cpe:2.3:a:oisf:suricata:5.0.7
  • Oisf » Suricata » Version: 5.0.8
    cpe:2.3:a:oisf:suricata:5.0.8
  • Oisf » Suricata » Version: 5.0.9
    cpe:2.3:a:oisf:suricata:5.0.9
  • Oisf » Suricata » Version: 6.0.0
    cpe:2.3:a:oisf:suricata:6.0.0
  • Oisf » Suricata » Version: 6.0.1
    cpe:2.3:a:oisf:suricata:6.0.1
  • Oisf » Suricata » Version: 6.0.2
    cpe:2.3:a:oisf:suricata:6.0.2
  • Oisf » Suricata » Version: 6.0.3
    cpe:2.3:a:oisf:suricata:6.0.3
  • Debian » Debian Linux » Version: 10.0
    cpe:2.3:o:debian:debian_linux:10.0
  • Debian » Debian Linux » Version: 11.0
    cpe:2.3:o:debian:debian_linux:11.0
  • Debian » Debian Linux » Version: 9.0
    cpe:2.3:o:debian:debian_linux:9.0


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