Vulnerabilities > CVE-2017-12262 - Improper Initialization vulnerability in Cisco Application Policy Infrastructure Controller Enterprise Module
Attack vector
ADJACENT_NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
A vulnerability within the firewall configuration of the Cisco Application Policy Infrastructure Controller Enterprise Module (APIC-EM) could allow an unauthenticated, adjacent attacker to gain privileged access to services only available on the internal network of the device. The vulnerability is due to an incorrect firewall rule on the device. The misconfiguration could allow traffic sent to the public interface of the device to be forwarded to the internal virtual network of the APIC-EM. An attacker that is logically adjacent to the network on which the public interface of the affected APIC-EM resides could leverage this behavior to gain access to services listening on the internal network with elevated privileges. This vulnerability affects appliances or virtual devices running Cisco Application Policy Infrastructure Controller Enterprise Module prior to version 1.5. Cisco Bug IDs: CSCve89638.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Leveraging Race Conditions This attack targets a race condition occurring when multiple processes access and manipulate the same resource concurrently and the outcome of the execution depends on the particular order in which the access takes place. The attacker can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance a race condition can occur while accessing a file, the attacker can trick the system by replacing the original file with his version and cause the system to read the malicious file.
- Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. The typical example is the file access. The attacker can leverage a file access race condition by "running the race", meaning that he would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the attacker could do something such as replace the file and cause an escalation of privilege.
Nessus
| NASL family | CISCO |
| NASL id | CISCO_APIC_1_5.NASL |
| description | According to its self-reported version number, the Cisco Application Policy Infrastructure Controller Enterprise Module (APIC-EM) application running on the remote host is 1.x prior to 1.5. It is, therefore, affected by a vulnerability within the firewall configuration of the Cisco Application Policy Infrastructure Controller Enterprise Module (APIC-EM) that could allow an unauthenticated, adjacent attacker to gain privileged access to services only available on the internal network of the device. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 104479 |
| published | 2017-11-09 |
| reporter | This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/104479 |
| title | Cisco APIC-EM 1.x < 1.5 Unauthorized Access (credentialed check) |
| code | |
References
- http://www.securityfocus.com/bid/101647
- http://www.securityfocus.com/bid/101647
- http://www.securitytracker.com/id/1039716
- http://www.securitytracker.com/id/1039716
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-apicem
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-apicem