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

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.1 HIGH
Vector: AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.2


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 v2.0 Severity and Metrics:

Base Score: 4.6 MEDIUM
Vector: (AV:N/AC:H/Au:S/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 3.9


Access Vector (AV): Network
Access Complexity (AC): High
Authentication (AU): Single
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/100400 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039180 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-apic1 Vendor Advisory

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
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Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-6767
NVD Published Date:
08/17/2017
NVD Last Modified:
08/22/2017