CVE-2016-10041 Information

Description

An issue was discovered in Sprecher Automation SPRECON-E Service Program before 3.43 SP0. Under certain preconditions it is possible to execute telegram simulation as a non-admin user. As prerequisites a user must have created an online-connection validly authenticated and authorized as administrator and executed telegram simulation. After that the online-connection must have been closed. Incorrect caching of client data then may lead to privilege escalation where a subsequently acting non-admin user is permitted to do telegram simulation. In order to exploit this vulnerability a potential attacker would need to have both a valid engineering-account in the SPRECON RBAC system as well as access to a service/maintenance computer with SPRECON-E Service Program running. Additionally a valid admin-user must have closed the service connection beforehand without closing the program having executed telegram simulation; the attacker then has access to the running software instance. Hence there is no risk from external attackers.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/95296 https://www.sprecher-automation.com/en/it-security/

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.5