vulnwire
5.3med

CVE-2018-67941 exploit

Suricata before 4.0.4 is prone to an HTTP detection bypass vulnerability in detect.c and stream-tcp.c.

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
23.7%
percentile 98%
Public exploits
1
Exploit-DB

Suricata before 4.0.4 is prone to an HTTP detection bypass vulnerability in detect.c and stream-tcp.c. If a malicious server breaks a normal TCP flow and sends data before the 3-way handshake is complete, then the data sent by the malicious server will be accepted by web clients such as a web browser or Linux CLI utilities, but ignored by Suricata IDS signatures. This mostly affects IDS signatures for the HTTP protocol and TCP stream content; signatures for TCP packets will inspect such network traffic as usual.

Exploit prediction (EPSS)

23.69% probability of exploitation in the next 30 days, higher than 98% of all scored CVEs.

Exploits and detections

  • EDB-44247 Suricata < 4.0.4 - IDS Detection Bypass · dos · 2018-03-05

CVSS scores

Assigned byVersionScoreVector
NVD3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-693 Protection Mechanism Failure

References

  • github.com /OISF/suricata/pull/3202/commits/e1ef57c848bbe4e567d5d4b66d346a742e3f77a1 · x_refsource_CONFIRM, x_transferred
  • lists.debian.org /debian-lts-announce/2018/12/msg00000.html · mailing-list, x_refsource_MLIST, x_transferred
  • redmine.openinfosecfoundation.org /issues/2427 · x_refsource_CONFIRM, x_transferred
  • suricata-ids.org /2018/02/14/suricata-4-0-4-available/ · x_refsource_CONFIRM, x_transferred
  • exploit-db.com /exploits/44247/ · exploit, x_refsource_EXPLOIT-DB, x_transferred

Sources

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