CyberSecBulletin
CVE-2022-40187NVD status: Modified

Gc3 Launch Monitor Firmware: Incorrect Default Permissions

Published Updated By the CyberSecBulletin desk

CVE-2022-40187 is a high-severity incorrect default permissions vulnerability in Gc3 Launch Monitor Firmware from Foresightsports, with a CVSS 3.1 base score of 8.0 out of 10. It can be exploited from the same local network by an attacker with a low-privileged account, without any action from a user. The record lists version 1.5.0.2 as the first without the flaw, so updating Gc3 Launch Monitor Firmware to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.85% chance of exploitation within 30 days, higher than 59% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Gc3 Launch Monitor Firmware to 1.5.0.2 or a later version.
  2. Update Launch Pro Firmware to 1.5.0.2 or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
ForesightsportsGc3 Launch Monitor Firmwarebefore 1.5.0.21.5.0.2
BushnellgolfLaunch Pro Firmwarebefore 1.5.0.21.5.0.2

Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
AdjacentThe attacker must be on the same local network segment.
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:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.18.0HighNVD
CVSS 3.18.0HighCISA (ADP)

Official description

Foresight GC3 Launch Monitor 1.3.15.68 ships with a Target Communication Framework (TCF) service enabled. This service listens on a TCP port on all interfaces and allows for process debugging, file system modification, and terminal access as the root user. In conjunction with a hosted wireless access point and the known passphrase of FSSPORTS, an attacker could use this service to modify a device and steal intellectual property.

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

The underlying weakness: Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.

How developers prevent this class of flaw

  • The architecture needs to access and modification attributes for files to only those users who actually require those actions.
  • Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

More Incorrect Default Permissions vulnerabilities (CWE-276)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Technical write-ups (may include proof of concept)

Recent Incorrect Default Permissions vulnerabilities

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