CVE-2018-0294 : A vulnerability in the write-erase feature of Cisco FXOS Software and Cisco NX-O

A vulnerability in the write-erase feature of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to configure an unauthorized administrator account for an affected device. The vulnerability exists because the affected software does not properly delete sensitive files when certain CLI commands are used to clear the device configuration and reload a device. An attacker could exploit this vulnerability by logging into an affected device as an administrative user and configuring an unauthorized account for the device. The account would not require a password for authentication and would be accessible only via a Secure Shell (SSH) connection to the device. A successful exploit could allow the attacker to configure an unauthorized account that has administrative privileges, does not require a password for authentication, and does not appear in the running configuration or the audit logs for the affected device. This vulnerability affects Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, Nexus 1000V Series Switches, Nexus 1100 Series Cloud Services Platforms, Nexus 2000 Series Fabric Extenders, Nexus 3500 Platform Switches, Nexus 4000 Series Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd13993, CSCvd34845, CSCvd34857, CSCvd34862, CSCvd34879, CSCve35753.

Published 2018-06-20 21:29:00

Updated 2023-04-20 15:27:48

Source Cisco Systems, Inc.

View at NVD, CVE.org

Products affected by CVE-2018-0294

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 92160yc-x » Version: N/A
When used together with: Cisco » Nexus 92304qc » Version: N/A
When used together with: Cisco » Nexus 9236c » Version: N/A
When used together with: Cisco » Nexus 9272q » Version: N/A
When used together with: Cisco » Nexus 93108tc-ex » Version: N/A
When used together with: Cisco » Nexus 93120tx » Version: N/A
When used together with: Cisco » Nexus 93128tx » Version: N/A
When used together with: Cisco » Nexus 93180yc-ex » Version: N/A
When used together with: Cisco » Nexus 9332pq » Version: N/A
When used together with: Cisco » Nexus 9372px » Version: N/A
When used together with: Cisco » Nexus 9372tx » Version: N/A
When used together with: Cisco » Nexus 9396px » Version: N/A
When used together with: Cisco » Nexus 9396tx » Version: N/A
When used together with: Cisco » Nexus 9504 » Version: N/A
When used together with: Cisco » Nexus 9508 » Version: N/A
When used together with: Cisco » Nexus 9516 » Version: N/A
When used together with: Cisco » Nexus N9k-c9508-fm-r » Version: N/A
When used together with: Cisco » Nexus N9k-x9636c-r » Version: N/A
When used together with: Cisco » Nexus N9k-x9636q-r » Version: N/A
Cisco » Nx-os » Version: 7.3(2)n1(0.354)
cpe:2.3:o:cisco:nx-os:7.3\(2\)n1\(0.354\):*:*:*:*:*:*:*
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: 5.2(1)sv3(1.10)
cpe:2.3:o:cisco:nx-os:5.2\(1\)sv3\(1.10\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 1000v » Version: N/A For Vmware Vsphere
Cisco » Nx-os » Version: 7.0(3)i2(4a)
cpe:2.3:o:cisco:nx-os:7.0\(3\)i2\(4a\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 172tq-xl » Version: N/A
When used together with: Cisco » Nexus 3016 » Version: N/A
When used together with: Cisco » Nexus 3048 » Version: N/A
When used together with: Cisco » Nexus 3064-32t » Version: N/A
When used together with: Cisco » Nexus 3064-t » Version: N/A
When used together with: Cisco » Nexus 3064-x » Version: N/A
When used together with: Cisco » Nexus 3100-v » Version: N/A
When used together with: Cisco » Nexus 31128pq » Version: N/A
When used together with: Cisco » Nexus 3132c-z » Version: N/A
When used together with: Cisco » Nexus 3132q » Version: N/A
When used together with: Cisco » Nexus 3132q-x » Version: N/A
When used together with: Cisco » Nexus 3132q-xl » Version: N/A
When used together with: Cisco » Nexus 3164q » Version: N/A
When used together with: Cisco » Nexus 3172pq » Version: N/A
When used together with: Cisco » Nexus 3172pq-xl » Version: N/A
When used together with: Cisco » Nexus 3172tq » Version: N/A
When used together with: Cisco » Nexus 3172tq-32t » Version: N/A
When used together with: Cisco » Nexus 3232c » Version: N/A
When used together with: Cisco » Nexus 3264c-e » Version: N/A
When used together with: Cisco » Nexus 3264q » Version: N/A
When used together with: Cisco » Nexus 34180yc » Version: N/A
When used together with: Cisco » Nexus 3524-x » Version: N/A
When used together with: Cisco » Nexus 3524-xl » Version: N/A
When used together with: Cisco » Nexus 3548 » Version: N/A
When used together with: Cisco » Nexus 3548-x » Version: N/A
When used together with: Cisco » Nexus 3548-xl » Version: N/A
When used together with: Cisco » Nexus 3636c-r » Version: N/A
When used together with: Cisco » Nexus C36180yc-r » Version: N/A
Cisco » Nx-os » Version: 4.1(2)e1(1a)
cpe:2.3:o:cisco:nx-os:4.1\(2\)e1\(1a\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 4001 » Version: N/A
Cisco » Firepower Extensible Operating System
Versions from including (>=) 2.2 and before (<) 2.2.2.17
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A
Cisco » Firepower Extensible Operating System
Versions from including (>=) 2.1.1 and before (<) 2.1.1.86
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A
Cisco » Fxos
Versions from including (>=) 1.1 and before (<) 2.0.1.159
cpe:2.3:o:cisco:fxos:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2018-0294

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 6 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-0294

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
6.7	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2018-0294

CWE-264

Assigned by: ykramarz@cisco.com (Secondary)

References for CVE-2018-0294

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

Cisco FXOS and NX-OS Software Unauthorized Administrator Account Vulnerability
Vendor Advisory
http://www.securitytracker.com/id/1041169

Cisco NX-OS Multiple Bugs Let Remote Users Deny Service and Execute Arbitrary Code and Let Remote Authenticated Users Gain Elevated Privileges - SecurityTracker
Third Party Advisory;VDB Entry

CVEs referencing this url

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Vulnerability Details : CVE-2018-0294

Products affected by CVE-2018-0294

Exploit prediction scoring system (EPSS) score for CVE-2018-0294

CVSS scores for CVE-2018-0294

CWE ids for CVE-2018-0294

References for CVE-2018-0294