CVE-2018-0337 : A vulnerability in the role-based access-checking mechanisms of Cisco NX-OS Software could allow an authenticated, local

A vulnerability in the role-based access-checking mechanisms of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on an affected device. The vulnerability exists because the affected software lacks proper input and validation checks for certain file systems. An attacker could exploit this vulnerability by issuing crafted commands in the CLI of an affected device. A successful exploit could allow the attacker to cause other users to execute unwanted, arbitrary commands on the affected device. Cisco Bug IDs: CSCvd06339, CSCvd15698, CSCvd36108, CSCvf52921, CSCvf52930, CSCvf52953, CSCvf52976.

Published 2018-06-21 11:29:01

Updated 2020-08-31 15:41:22

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Input validation

Exploit prediction scoring system (EPSS) score for CVE-2018-0337

Probability of exploitation activity in the next 30 days: 0.04%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-0337

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.2	HIGH	AV:L/AC:L/Au:N/C:C/I:C/A:C	3.9	10.0	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	1.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2018-0337

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: ykramarz@cisco.com (Secondary)
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-0337

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-nxos-rbaccess

Cisco NX-OS Software Role-Based Access Arbitrary Command Execution Vulnerability
Vendor Advisory

Products affected by CVE-2018-0337

Cisco » Nx-os » Version: 8.1(0)bd(0.20)
cpe:2.3:o:cisco:nx-os:8.1\(0\)bd\(0.20\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os » Version: 7.1(4)n1(1)
cpe:2.3:o:cisco:nx-os:7.1\(4\)n1\(1\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5000 » Version: N/A
When used together with: Cisco » Nexus 5010 » Version: N/A
When used together with: Cisco » Nexus 5020 » Version: N/A
When used together with: Cisco » Nexus 5548p » Version: N/A
When used together with: Cisco » Nexus 5548up » Version: N/A
When used together with: Cisco » Nexus 5596t » Version: N/A
When used together with: Cisco » Nexus 5596up » Version: N/A
When used together with: Cisco » Nexus 56128p » Version: N/A
When used together with: Cisco » Nexus 5624q » Version: N/A
When used together with: Cisco » Nexus 5648q » Version: N/A
When used together with: Cisco » Nexus 5672up » Version: N/A
When used together with: Cisco » Nexus 5696q » Version: N/A
Cisco » Nx-os » Version: 8.8(3.5)s0
cpe:2.3:o:cisco:nx-os:8.8\(3.5\)s0:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os » Version: 7.0(8)n1(1)
cpe:2.3:o:cisco:nx-os:7.0\(8\)n1\(1\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5000 » Version: N/A
When used together with: Cisco » Nexus 5010 » Version: N/A
When used together with: Cisco » Nexus 5020 » Version: N/A
When used together with: Cisco » Nexus 5548p » Version: N/A
When used together with: Cisco » Nexus 5548up » Version: N/A
When used together with: Cisco » Nexus 5596t » Version: N/A
When used together with: Cisco » Nexus 5596up » Version: N/A
When used together with: Cisco » Nexus 56128p » Version: N/A
When used together with: Cisco » Nexus 5624q » Version: N/A
When used together with: Cisco » Nexus 5648q » Version: N/A
When used together with: Cisco » Nexus 5672up » Version: N/A
When used together with: Cisco » Nexus 5696q » Version: N/A
Cisco » Nx-os » Version: 7.3(1)n1(0.6)
cpe:2.3:o:cisco:nx-os:7.3\(1\)n1\(0.6\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5000 » Version: N/A
When used together with: Cisco » Nexus 5010 » Version: N/A
When used together with: Cisco » Nexus 5020 » Version: N/A
When used together with: Cisco » Nexus 5548p » Version: N/A
When used together with: Cisco » Nexus 5548up » Version: N/A
When used together with: Cisco » Nexus 5596t » Version: N/A
When used together with: Cisco » Nexus 5596up » Version: N/A
When used together with: Cisco » Nexus 56128p » Version: N/A
When used together with: Cisco » Nexus 5624q » Version: N/A
When used together with: Cisco » Nexus 5648q » Version: N/A
When used together with: Cisco » Nexus 5672up » Version: N/A
When used together with: Cisco » Nexus 5696q » Version: N/A
Cisco » Nx-os » Version: 7.3(2)n1(0.350)
cpe:2.3:o:cisco:nx-os:7.3\(2\)n1\(0.350\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5000 » Version: N/A
When used together with: Cisco » Nexus 5010 » Version: N/A
When used together with: Cisco » Nexus 5020 » Version: N/A
When used together with: Cisco » Nexus 5548p » Version: N/A
When used together with: Cisco » Nexus 5548up » Version: N/A
When used together with: Cisco » Nexus 5596t » Version: N/A
When used together with: Cisco » Nexus 5596up » Version: N/A
When used together with: Cisco » Nexus 56128p » Version: N/A
When used together with: Cisco » Nexus 5624q » Version: N/A
When used together with: Cisco » Nexus 5648q » Version: N/A
When used together with: Cisco » Nexus 5672up » Version: N/A
When used together with: Cisco » Nexus 5696q » Version: N/A
Cisco » Nx-os » Version: 8.1(0.9)
cpe:2.3:o:cisco:nx-os:8.1\(0.9\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os » Version: 7.3(1)dx(0.119)
cpe:2.3:o:cisco:nx-os:7.3\(1\)dx\(0.119\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os » Version: 8.3(0)spg(0.30)
cpe:2.3:o:cisco:nx-os:8.3\(0\)spg\(0.30\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os » Version: 7.3(3)d1(0.2)
cpe:2.3:o:cisco:nx-os:7.3\(3\)d1\(0.2\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os » Version: 8.0(0.54)s0
cpe:2.3:o:cisco:nx-os:8.0\(0.54\)s0:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A
Cisco » Nx-os » Version: 8.2(0.4)s0
cpe:2.3:o:cisco:nx-os:8.2\(0.4\)s0:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 7000 » Version: N/A
When used together with: Cisco » Nexus 7700 » Version: N/A

Vulnerability Details : CVE-2018-0337

Exploit prediction scoring system (EPSS) score for CVE-2018-0337

CVSS scores for CVE-2018-0337

CWE ids for CVE-2018-0337

References for CVE-2018-0337

Products affected by CVE-2018-0337