CVE Vulnerabilities

CVE-2021-40067

Incorrect Permission Assignment for Critical Resource

Published: Sep 16, 2021 | Modified: Nov 29, 2021
CVSS 3.x
6.8
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
4.9 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

The access controls on the Mobility read-write API improperly validate user access permissions; this API is disabled by default. If the API is manually enabled, attackers with both network access to the API and valid credentials can read and write data to it; regardless of access control group membership settings. This vulnerability is fixed in Mobility v12.14.

Weakness

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Software

Name Vendor Start Version End Version
Mobility Netmotionsoftware * 12.14 (excluding)

Potential Mitigations

  • Run the code in a “jail” or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.

References