V
Scaner-VSvulnerability catalog · v4.2
CVE-2018-6794
DEB
MediumConfirmedExploit available

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 nor…

CVSS
5.3
Medium
EPSS
0.37
p97
Published
2018-01-01
Updated
2018-01-01
Description

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.

Tags · CWE
Pre-auth
CWE-693
CAPEC-1
CAPEC-17
CAPEC-20
CAPEC-22
CAPEC-36
CAPEC-51
CAPEC-57
CAPEC-59
CAPEC-65
CAPEC-74
CAPEC-87
CAPEC-107
CAPEC-127
CAPEC-237
CAPEC-477
CAPEC-480
CAPEC-668
Affected products
Debian_linux
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Timeline
2018-01-01
Published
2018-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: N
None (N)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: N
None (N)
Integrity Impact
I: L
Low (L)
Availability Impact
A: N
None (N)
Exploit indicators
EPSS
0.374 · p97
Known exploited (KEV)
No
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-57 · CWE-693
└ via CAPEC-127 · CWE-693
└ via CAPEC-668 · CWE-693
└ via CAPEC-480 · CWE-693
Known exploits — Сканер-ВС
44247
exploitdb · https://www.exploit-db.com/exploits/44247
Enterprise
Affected software
ProductVendorStatus
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
suricataTracked
debian_linux*Tracked
suricata*Tracked
Source databases
DEB
CVE
UBU
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