Background exploitation KEV catalog
CVE-2017-6334

NETGEAR DGN2200 Devices OS Command Injection Vulnerability

dnslookup.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in the host_name field of an HTTP POST request, a different vulnerability…

CheckOps priority index
7.5/10 Patch within 7 days
Severity8.8
Probability7.3
Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 72.6% higher than 99.4% of CVEs
CVSS 3.1 8.8 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:
Exploited for 1,684 days 25 Mar 2022
CISA due date 15 Apr 2022 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

  • KEV catalog (CISA)25 Mar 2022
  • Exploited in EUVD (ENISA)25 Mar 2022
  • Used by ransomwareno
  • EPSS above 10 %72.6%
  • No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: The impacted product is end-of-life and should be disconnected if still in use.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

dnslookup.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in the host_name field of an HTTP POST request, a different vulnerability than CVE-2017-6077.

Affected products

DGN2200 Devices
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 72.6%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2017-5521NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability
    8.3 · Background exploitation
  • CVE-2017-6862NETGEAR Multiple Devices Buffer Overflow Vulnerability
    7.7 · Background exploitation
  • CVE-2016-10174NETGEAR WNR2000v5 Router Buffer Overflow Vulnerability
    8.8 · Background exploitation
  • CVE-2016-1555NETGEAR Multiple WAP Devices Command Injection Vulnerability
    9.3 · Background exploitation
  • CVE-2017-6077NETGEAR DGN2200 Remote Code Execution Vulnerability
    8.4 · Background exploitation
  • CVE-2016-6277NETGEAR Multiple Routers Remote Code Execution Vulnerability
    8.9 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities