National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-6767 Detail

Current Description

A vulnerability in Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, remote attacker to gain higher privileges than the account is assigned. The attacker will be granted the privileges of the last user to log in, regardless of whether those privileges are higher or lower than what should have been granted. The attacker cannot gain root-level privileges. The vulnerability is due to a limitation with how Role-Based Access Control (RBAC) grants privileges to remotely authenticated users when login occurs via SSH directly to the local management interface of the APIC. An attacker could exploit this vulnerability by authenticating to the targeted device. The attacker's privilege level will be modified to match that of the last user to log in via SSH. An exploit could allow the attacker to gain elevated privileges and perform CLI commands that should be restricted by the attacker's configured role. Cisco Bug IDs: CSCvc34335. Known Affected Releases: 1.0(1e), 1.0(1h), 1.0(1k), 1.0(1n), 1.0(2j), 1.0(2m), 1.0(3f), 1.0(3i), 1.0(3k), 1.0(3n), 1.0(4h), 1.0(4o); 1.1(0.920a), 1.1(1j), 1.1(3f); 1.2 Base, 1.2(2), 1.2(3), 1.2.2; 1.3(1), 1.3(2), 1.3(2f); 2.0 Base, 2.0(1).

Source:  MITRE      Last Modified:  08/17/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-6767
Original release date:
08/17/2017
Last revised:
08/22/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
7.1 High
Vector:
CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H (legend)
Impact Score:
5.9
Exploitability Score:
1.2
CVSS Version 3 Metrics:
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
4.6 MEDIUM
Vector:
(AV:N/AC:H/Au:S/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Network exploitable - Victim must voluntarily interact with attack mechanism
Access Complexity:
High
Authentication:
Required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.securityfocus.com/bid/100400 Third Party Advisory; VDB Entry External Source BID 100400
http://www.securitytracker.com/id/1039180 Third Party Advisory; VDB Entry External Source SECTRACK 1039180
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-apic1 Vendor Advisory External Source CISCO 20170816 Cisco Application Policy Infrastructure Controller SSH Privilege Escalation Vulnerability

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(1e\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(1h\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(1k\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(1n\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(2j\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(2m\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(3f\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(3i\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(3k\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(3n\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(4h\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.0\(4o\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.1\(0.920a\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.1\(1j\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.1\(3f\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.2\(2\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.2\(3\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.2_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.3\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.3\(2\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:1.3\(2f\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:2.0\(1\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:application_policy_infrastructure_controller:2.0_base:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

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