Communication Manager provides authorization controls to prevent unauthorized users from performing certain tasks such as installing software, changing configuration settings, creating user accounts, or installing new hardware. This control helps ensure that only authorized users have access to the necessary resources required to perform their roles. Communication Manager provides a number of mechanisms that can be used to restrict a user’s privileges. These mechanisms include access control lists (ACLs), roles, permissions, and groups. Communication Manager version 8.1.3.3, when applied to web servers, provides a mechanism that provides a means for local administrators to elevate their privileges by modifying a user’s privileges. This issue can be exploited by a local user who has local administrative rights.
Vulnerability
Communication Manager version 8.1.3.3 provides a mechanism that allows local administrators to modify a user’s privileges by allowing them to elevate their privileges by modifying a user’s privileges. This can be exploited by a local user who has local administrative rights, which might allow the attacker to gain access to privileged resources such as privileged commands and files on the server, which could lead to further exploitation of the system.
Summary of Key Points in this Chapter
1. Communication Manager provides authorization controls to prevent unauthorized users from performing certain tasks such as installing software, changing configuration settings, creating user accounts, or installing new hardware.
2. This control helps ensure that only authorized users have access to the necessary resources required to perform their roles.
3. Communication Manager provides a number of mechanisms that can be used to restrict a user’s privileges. These mechanisms include access control lists (ACLs), roles, permissions, and groups.
4. Communication Manager version 8.1.3.3, when applied to web servers, provides a mechanism that provides a means for local administrators to elevate their privileges by modifying a user’s privileges which can be exploited by a local user who has local administrative rights.
Description of the Issue
As of Communication Manager version 8.1.3.3, when applied to web servers, provides a mechanism that provides a means for local administrators to escalate their privileges by modifying a user’s privileges. This issue can be exploited by a local user who has local administrative rights.
Vulnerability overview
A vulnerability exists in Communication Manager version 8.1.3.3 when applied to web servers. It allows local administrators to elevate their privileges by modifying user privileges. This can be exploited by a local user who has local administrative rights. The following components are impacted:
* Communication Manager version 8.1.3.3, when applied to web servers
** Content Filter versions 1.2, 2.0 and 3.0
** Secure Gateway versions 7 and 8
Exploitation of Communication Manager Local Privilege Escalation Method
Communication Manager 8.1.3.3, when applied to web servers, provides a mechanism that provides a means for local administrators to elevate their privileges by modifying a user’s privileges. This privilege escalation method is available to local administrators only and allows any user with local administrative rights to modify the privileges of another user without having the necessary level of access required for the modification to be completed successfully. If a local administrator does not have all necessary privileges, but has sufficient privilege for one task (such as modifying a privilege), this mechanism can be used to modify that task’s privileges. For example, if an administrator lacks both the necessary permissions for installing software and installing hardware devices, but has sufficient permission for modifying roles and creating new users, this mechanism can be used by that administrator to attempt the privilege modification without having all of the necessary permissions in place first. The result is that if an attacker submits an XML web service request as a local administrator with enough privilege but not enough permission, this method will succeed in modifying the requested configuration settings or changing account ownership or role based on whichever permission they have in place at the time they submit their request.
Timeline
Published on: 10/12/2022 19:15:00 UTC
Last modified on: 10/14/2022 20:13:00 UTC