CyberSecBulletin
CVE-2022-24389NVD status: Modified

Fidelis Network: Improper Neutralization of Special Elements used in a Command

Published Updated By the CyberSecBulletin desk

CVE-2022-24389 is a high-severity improper neutralization of special elements used in a command vulnerability in Fidelis Network from Fidelis Cybersecurity, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists version 9.4.5 as the first without the flaw, so updating Fidelis Network to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1.53% chance of exploitation within 30 days, higher than 75% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Fidelis Network to 9.4.5 or a later version.
  2. Update Fidelis Deception to 9.4.5 or a later version.
  3. Update Deception to 9.4.5 or a later version.
  4. Read the advisory on fidelissecurity.zendesk.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
Fidelis CybersecurityFidelis NetworkFidelis Network up to, but not including, 9.4.59.4.5
Fidelis CybersecurityFidelis DeceptionFidelis Deception up to, but not including, 9.4.59.4.5
FidelissecurityDeceptionbefore 9.4.59.4.5
FidelissecurityNetworkbefore 9.4.59.4.5

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.18.8HighCNA (fidelissecurity.com)
CVSS 3.18.8HighNVD
CVSS 2.09.0HighNVD

Official description

Vulnerability in rconfig “cert_utils” enables an attacker with user level access to the CLI to inject root level commands into Fidelis Network and Deception CommandPost, Collector, Sensor, and Sandbox components as well as neighboring Fidelis components. The vulnerability is present in Fidelis Network and Deception versions prior to 9.4.5. Patches and updates are available to address this vulnerability.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Neutralization of Special Elements used in a Command

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

How developers prevent this class of flaw

  • If at all possible, use library calls rather than external processes to recreate the desired functionality.
  • If possible, ensure that all external commands called from the program are statically created.
  • Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.

More Improper Neutralization of Special Elements used in a Command vulnerabilities (CWE-77)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Fidelis Network

All Fidelis Network vulnerabilities

Recent Improper Neutralization of Special Elements used in a Command vulnerabilities

Spotted an error? Tell us.