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cvelistTalosCVELIST:CVE-2018-3963
HistoryMar 21, 2019 - 3:52 p.m.

CVE-2018-3963

2019-03-2115:52:13
talos
www.cve.org
3
command injection
cujo smart firewall
dhcp daemon
dhcp request
static dhcp entry

CVSS3

9

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0.001

Percentile

20.2%

An exploitable command injection vulnerability exists in the DHCP daemon configuration of the CUJO Smart Firewall. When adding a new static DHCP address, its corresponding hostname is inserted into the dhcpd.conf file without prior sanitization, allowing for arbitrary execution of system commands. To trigger this vulnerability, an attacker can send a DHCP request message and set up the corresponding static DHCP entry.

CNA Affected

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

CVSS3

9

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0.001

Percentile

20.2%