5.3med

CVE-2018-4030

An exploitable vulnerability exists the safe browsing function of the CUJO Smart Firewall, version 7003.

Published 7 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
1.2%
percentile 68%
Public exploits
0
none known

Summary

An exploitable vulnerability exists the safe browsing function of the CUJO Smart Firewall, version 7003. The bug lies in the way the safe browsing function parses HTTP requests. The "Host" header is incorrectly extracted from captured HTTP requests, which would allow an attacker to visit any malicious websites and bypass the firewall. An attacker could send an HTTP request to exploit this vulnerability.

Exploit prediction (EPSS)

1.17% probability of exploitation in the next 30 days, higher than 68% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD3.17.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA3.05.3CVSS: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

Affected products

  • n/a CUJO

Classification

Weakness
  • CWE-444 Inconsistent Interpretation of HTTP Requests

References

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.