CVE-2024-4640

Summary

OnCell G3470A-LTE Series firmware versions v1.7.7 and prior have been identified as vulnerable due to missing bounds checking on buffer operations. An attacker could write past the boundaries of allocated buffer regions in memory, causing a program crash.

Affected Software

Weaknesses

• CWE-120: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Workarounds

Moxa recommends users to implement the following mitigations if necessary:

• Minimize network exposure to ensure the device is not accessible from the Internet.
• When remote access is required, use secure methods, such as Virtual Private Networks (VPNs).
• The starting point of all the above vulnerabilities is from the web service, so it is suggested to disable web service temporarily if you completed configuration to prevent further damages from these vulnerabilities until installed patch or updated firmware.

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

CVE Program Container

Additional References

• https://www.moxa.com/en/support/product-support/security-advisory/mpsa-242550-oncell-g3470a-lte-series-multiple-web-application-vulnerabilities

References

• https://www.moxa.com/en/support/product-support/security-advisory/mpsa-242550-oncell-g3470a-lte-series-multiple-web-application-vulnerabilities

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