CyberSecBulletin
CVE-2024-2175NVD status: Deferred

Display Control Center: Incorrect Default Permissions

CVE-2024-2175 is a high-severity incorrect default permissions vulnerability in Display Control Center from Lenovo, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 3.0.29082.0 as the first without the flaw, so updating Display Control Center to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.16% 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 Display Control Center to 3.0.29082.0 or a later version.
  2. Update Accessories and Display Manager to 1.0.3.05 or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
LenovoDisplay Control Centerbefore 3.0.29082.03.0.29082.0
LenovoAccessories and Display Managerbefore 1.0.3.051.0.3.05

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
LocalThe attacker needs local access or must trick a user into running something.
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (lenovo.com).

Official description

An insecure permissions vulnerability was reported in Lenovo Display Control Center (LDCC) and Lenovo Accessories and Display Manager (LADM) that could allow a local attacker to escalate privileges.

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

Other vulnerabilities in Display Control Center

All Display Control Center vulnerabilities

Recent Incorrect Default Permissions vulnerabilities

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