CVE-2018-14839KEV · OVERDUE

LG N1A1 NAS Remote Command Execution Vulnerability

Critical · published May 14, 2019

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 99.8th percentile for exploit probability.

1652
days past CISA
deadline
CVSS v3.1
9.8
EPSS
89%
Percentile
99.8
In the wild
Confirmed
What it is

🚨 A single malicious HTTP POST can hand remote command execution to an attacker on LG N1A1 NAS devices! 🔥 Think of it like a visitor badge that allows access to all the back rooms of a hotel, simply because the front desk didn’t check the ID properly. An attacker can walk right in and execute commands as if they were an authorized user! The consequences are absolutely devastating. An attacker could remotely execute arbitrary code, essentially taking complete control over your NAS device. They could siphon off sensitive data, modify your files, or even wipe everything clean—talk about a digital nightmare!

Put simply

Think of it like a visitor badge that allows access to all the back rooms of a hotel, simply because the front desk didn’t check the ID properly. An attacker can walk right in and execute commands as if they were an authorized user! This vulnerability exists due to improper handling of HTTP POST requests that allows remote command execution, meaning attackers can execute system commands by sending crafted parameters to the device.

What to do

The consequences are absolutely devastating. An attacker could remotely execute arbitrary code, essentially taking complete control over your NAS device. They could siphon off sensitive data, modify your files, or even wipe everything clean—talk about a digital nightmare! Immediately update your LG N1A1 NAS to the latest firmware version to close this loophole. Additionally, consider implementing network segmentation and firewalls to limit exposure and prevent unauthorized access. You've got this! Follow these steps and you'll be a security hero in no time. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.89354 · 99.8th percentile
Published
2019-05-14T20:01Z
KEV added
2022-03-25 · due 2022-04-15
EPSS history
Timeline
  • 25 MAR 00:00Z
    Added to CISA KEV — remediate by Apr 15
    kev
  • 14 MAY 20:01Z
    LG N1A1 NAS 3718.510 is affected by: Remote Command Execution
    cvelistv5