Background exploitation KEV catalog
CVE-2021-21315

Npm package System Information Library for Node.JS Command Injection

The System Information Library for Node.JS (npm package "systeminformation") is an open source collection of functions to retrieve detailed hardware, system and OS information. In systeminformation before version 5.3.1 there is a command…

CheckOps priority index
7.4/10 Patch within 7 days
Severity7.1
Probability9.1
Exploitation3/5

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

EPSS · today 90.7% higher than 99.8% of CVEs
CVSS 3.1 7.1 AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:
Exploited for 1,753 days 18 Jan 2022
CISA due date 01 Feb 2022 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep06 Oct16 Oct25 Oct04 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

  • KEV catalog (CISA)18 Jan 2022
  • Exploited in EUVD (ENISA)18 Jan 2022
  • Used by ransomwareno
  • EPSS above 10 %90.7%
  • No account, over the networkno

What to do

Fix

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

CISA guidance: Apply updates per vendor instructions.

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

The System Information Library for Node.JS (npm package "systeminformation") is an open source collection of functions to retrieve detailed hardware, system and OS information. In systeminformation before version 5.3.1 there is a command injection vulnerability. Problem was fixed in version 5.3.1. As a workaround instead of upgrading, be sure to check or sanitize service parameters that are passed to si.inetLatency(), si.inetChecksite(), si.services(), si.processLoad() ... do only allow strings, reject any arrays. String sanitation works as expected.

Affected products

systeminformationSystem Information Library for Node.JS
Affected versions
  • < 5.3.1
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: 90.7%

References

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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