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cve[email protected]CVE-2018-4031
HistoryOct 31, 2019 - 9:15 p.m.

CVE-2018-4031

2019-10-3121:15:12
CWE-94
web.nvd.nist.gov
70
2
vulnerability
cujo smart firewall
lua script execution
kernel
http requests
cve-2018-4031

10 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.6%

An exploitable vulnerability exists in the safe browsing function of the CUJO Smart Firewall, version 7003. The flaw lies in the way the safe browsing function parses HTTP requests. The server hostname is extracted from captured HTTP/HTTPS requests and inserted as part of a Lua statement without prior sanitization, which results in arbitrary Lua script execution in the kernel. An attacker could send an HTTP request to exploit this vulnerability.

Affected configurations

Vulners
NVD
Node
cujosmart_firewallRange7003
VendorProductVersionCPE
cujosmart_firewall*cpe:2.3:h:cujo:smart_firewall:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "CUJO",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "CUJO Smart Firewall - Firmware version 7003"
      }
    ]
  }
]

Social References

More

10 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.6%