Cisco NX-OS on Nexus 7000 Virtual Device Context access control

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco NX-OS on Nexus 7000. It has been rated as problematic. This affects an unknown function of the component Virtual Device Context. The manipulation leads to access control. This vulnerability is uniquely identified as CVE-2014-2200. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco NX-OS on Nexus 7000 (Router Operating System) (version unknown) and classified as critical. This issue affects an unknown function of the component Virtual Device Context. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Cisco NX-OS 5.0 before 5.0(5) on Nexus 7000 devices, when local authentication and multiple VDCs are enabled, allows remote authenticated users to gain privileges within an unintended VDC via an SSH session to a management interface, aka Bug ID CSCti11629.

The weakness was disclosed 05/21/2014 as cisco-sa-20140521-nxos / CSCti11629 as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2014-2200 since 02/25/2014. The exploitation is known to be difficult. The attack may be initiated remotely. The successful exploitation requires a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:

Cisco NX-OS-Based devices contain a privilege escalation vulnerability when multiple virtual device contexts (VDC) exist on the system and local authentication has been configured. A remote, authenticated attacker that can access the management interfaces via SSH of an affected device could authenticate in such a way as to obtain the privileges of an administrator in another VDC. Under certain conditions this may allow an attacker to take complete control of the affected device.

The vulnerability scanner Nessus provides a plugin with the ID 74241 (Cisco NX-OS Multiple Vulnerabilities (cisco-sa-20140521-nxos)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43032 (Cisco NX-OS Multiple Vulnerabilities (cisco-sa-20140521-nxos)).

Upgrading eliminates this vulnerability. The upgrade is hosted for download at software.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (93310), Tenable (74241), SecurityFocus (BID 67571†), SecurityTracker (ID 1030268†) and Vulnerability Center (SBV-44633†). tools.cisco.com is providing further details. The entries VDB-13310, VDB-13309, VDB-13308 and VDB-69801 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74241
Nessus Name: Cisco NX-OS Multiple Vulnerabilities (cisco-sa-20140521-nxos)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: software.cisco.com

Timelineinfo

02/25/2014 🔍
05/21/2014 +85 days 🔍
05/21/2014 +0 days 🔍
05/21/2014 +0 days 🔍
05/21/2014 +0 days 🔍
05/21/2014 +0 days 🔍
05/22/2014 +1 days 🔍
05/25/2014 +3 days 🔍
05/26/2014 +1 days 🔍
06/20/2021 +2582 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20140521-nxos / CSCti11629
Status: Confirmed

CVE: CVE-2014-2200 (🔍)
GCVE (CVE): GCVE-0-2014-2200
GCVE (VulDB): GCVE-100-13307

IAVM: 🔍

X-Force: 93310 - Cisco NX-OS SSH privilege escalation, High Risk
SecurityFocus: 67571 - Cisco NX-OS Virtual Device Context SSH Remote Privilege Escalation Vulnerability
SecurityTracker: 1030268 - Cisco NX-OS Multiple Bugs Let Remote Users Deny Service and Execute Arbitrary Code and Remote Authenticated Users Gain Elevated Privileges
Vulnerability Center: 44633 - [cisco-sa-20140521-nxos] Cisco NX-OS Remote Privilege Escalation via an SSH Session - CVE-2014-2200, High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 05/22/2014 22:53
Updated: 06/20/2021 10:00
Changes: 05/22/2014 22:53 (49), 05/29/2017 08:46 (35), 06/20/2021 10:00 (3)
Complete: 🔍
Cache ID: 216::103

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