CVE Vulnerabilities


Improper Access Control

Published: Sep 07, 2016 | Modified: Sep 08, 2016
CVSS 3.x
CVSS 2.x
9.3 HIGH

The Camera driver in Huawei Honor 4C smartphones with software CHM-UL00C00 before CHM-UL00C00B564, CHM-TL00C01 before CHM-TL00C01B564, and CHM-TL00C00 before CHM-TL00HC00B564 allows attackers to cause a denial of service (system crash) or gain privileges via a crafted application, a different vulnerability than CVE-2016-6180, CVE-2016-6181, CVE-2016-6183, and CVE-2016-6184.


The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected Software

Name Vendor Start Version End Version
Honor_4c_firmware Huawei chm-tl00c01_b535 (including) chm-tl00c01_b535 (including)
Honor_4c_firmware Huawei chm-tl00c01b556 (including) chm-tl00c01b556 (including)
Honor_4c_firmware Huawei chm-tl00hc00_b535 (including) chm-tl00hc00_b535 (including)
Honor_4c_firmware Huawei chm-tl00hc00b556 (including) chm-tl00hc00b556 (including)
Honor_4c_firmware Huawei chm-ul00c00b535 (including) chm-ul00c00b535 (including)
Honor_4c_firmware Huawei chm-ul00c00b556 (including) chm-ul00c00b556 (including)

Extended Description

Access control involves the use of several protection mechanisms such as:

When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses:

Potential Mitigations

  • 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.