CVE Vulnerabilities


Improper Access Control

Published: Apr 02, 2017 | Modified: Apr 06, 2017
CVSS 3.x
CVSS 2.x
7.5 HIGH

Huawei Campus S7700 with software V200R001C00SPC300, V200R002C00SPC100, V200R003C00SPC300; S9300 with software V200R001C00SPC300, V200R002C00SPC100, V200R003C00SPC300; S9700 with software V200R001C00SPC300, V200R002C00SPC100, V200R003C00SPC300 allow unauthorized users to upgrade the bootrom or bootload software, bypass a Menu protection mechanism, conduct a Menu compromise attack, or bypass a Menu/upgrade protection mechanism.


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

Affected Software

Name Vendor Start Version End Version
Campus_s7700_firmware Huawei v200r001c00spc300 v200r001c00spc300
Campus_s7700_firmware Huawei v200r002c00spc100 v200r002c00spc100
Campus_s7700_firmware Huawei v200r003c00spc300 v200r003c00spc300

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.