CVE Vulnerabilities

CVE-2016-3882

Improper Access Control

Published: Oct 10, 2016 | Modified: Nov 28, 2016
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
6.1 MEDIUM
AV:A/AC:L/Au:N/C:N/I:N/A:C
RedHat/V2
RedHat/V3
Ubuntu

Off-by-one error in server/wifi/anqp/VenueNameElement.java in Wi-Fi in Android 6.x before 2016-10-01 and 7.0 before 2016-10-01 allows remote attackers to cause a denial of service (reboot) via an access point that provides a crafted (1) Venue Group or (2) Venue Type value, aka internal bug 29464811.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Android Google 6.0 (including) 6.0 (including)
Android Google 6.0.1 (including) 6.0.1 (including)
Android Google 7.0 (including) 7.0 (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.

References