CyberSecBulletin
CVE-2024-11980NVD status: Deferred

M100: Missing Authentication for Critical Functionality

Published Updated By the CyberSecBulletin desk

CVE-2024-11980 is a high-severity missing authentication for critical functionality vulnerability in M100 from Billion Electric, with a CVSS 3.1 base score of 8.6 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions 1.04.1.592.8, 1.04.613.13, 1.04.1.675 as the first without the flaw, so updating M100 to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.46% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update M100 to 1.04.1.592.8 or 1.04.613.13 or 1.04.1.675, whichever matches your release line, or a later version.
  2. Update M150 to 1.04.1.592.8 or 1.04.613.13 or 1.04.1.675, whichever matches your release line, or a later version.
  3. Update M120N to 1.04.1.592.8 or 1.04.613.13 or 1.04.1.675, whichever matches your release line, or a later version.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Billion ElectricM1001.04.1.592.* up to, but not including, 1.04.1.592.8; 1.04.1.613.* up to, but not including, 1.04.613.13; 1.04.1.* up to, but not including, 1.04.1.6751.04.1.592.8, 1.04.613.13, 1.04.1.675
Billion ElectricM1501.04.1.592.* up to, but not including, 1.04.1.592.8; 1.04.1.613.* up to, but not including, 1.04.613.13; 1.04.1.* up to, but not including, 1.04.1.675; 1.04.1.* < up to, but not including, 1.04.1.6751.04.1.592.8, 1.04.613.13, 1.04.1.675
Billion ElectricM120N1.04.1.592.* up to, but not including, 1.04.1.592.8; 1.04.1.613.* up to, but not including, 1.04.613.13; 1.04.1.* up to, but not including, 1.04.1.675; 1.04.1.* < up to, but not including, 1.04.1.6751.04.1.592.8, 1.04.613.13, 1.04.1.675
Billion ElectricM5001.04.1.592.* up to, but not including, 1.04.1.592.8; 1.04.1.613.* up to, but not including, 1.04.613.13; 1.04.1.* up to, but not including, 1.04.1.675; 1.04.1.* < up to, but not including, 1.04.1.6751.04.1.592.8, 1.04.613.13, 1.04.1.675

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
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
LowSome restricted data can be read.
Integrity
LowLimited modification of data is possible.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H. Scored by CNA (cert.org.tw).

Official description

Certain modes of routers from Billion Electric have a Missing Authentication vulnerability, allowing unauthenticated remote attackers to directly access the specific functionality to obtain partial device information, modify the WiFi SSID, and restart the device.

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

The underlying weakness: Missing Authentication for Critical Functionality

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

How developers prevent this class of flaw

  • For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator.
  • When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to require strong authentication for users who should be allowed to access the data.

More Missing Authentication for Critical Functionality vulnerabilities (CWE-306)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in M100

All M100 vulnerabilities

Recent Missing Authentication for Critical Functionality vulnerabilities

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