CVE-2018-0295 : A vulnerability in the Border Gateway Protocol (BGP) implementation of Cisco NX-

A vulnerability in the Border Gateway Protocol (BGP) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to the device unexpectedly reloading. The vulnerability is due to incomplete input validation of the BGP update messages. An attacker could exploit this vulnerability by sending a crafted BGP update message to the targeted device. An exploit could allow the attacker to cause the switch to reload unexpectedly. The Cisco implementation of the BGP protocol only accepts incoming BGP traffic from explicitly defined peers. To exploit this vulnerability, an attacker must be able to send the malicious packets over a TCP connection that appears to come from a trusted BGP peer or inject malformed messages into the victim's BGP network. This would require obtaining information about the BGP peers in the affected system's trusted network. The vulnerability may be triggered when the router receives a malformed BGP message from a peer on an existing BGP session. At least one BGP neighbor session must be established for a router to be vulnerable. This vulnerability affects Nexus 2000 Series Switches, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 3600 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules. Cisco Bug IDs: CSCve79599, CSCve87784, CSCve91371, CSCve91387.

Published 2018-06-20 21:29:00

Updated 2019-10-09 23:31:41

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Input validationDenial of service

Products affected by CVE-2018-0295

Cisco » Nx-os
Versions from including (>=) 7.0\(3\)i4 and before (<) 7.0\(3\)i7\(1\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
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
Versions before (<) 7.0\(3\)i4
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
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
Versions before (<) 7.0\(3\)i3
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
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
Versions from including (>=) 6.2 and before (<) 8.1\(2\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
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
Versions from including (>=) 6.0 and before (<) 7.3\(3\)n1\(1\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
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
Versions from including (>=) 7.0\(3\)i5 and before (<) 7.0\(3\)i6\(2\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
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: 7.0
cpe:2.3:o:cisco:nx-os:7.0:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 9500 » Version: N/A
Cisco » Nx-os » Version: 7.0(3)i7
cpe:2.3:o:cisco:nx-os:7.0\(3\)i7:*:*:*:*:*:*:*
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

Exploit prediction scoring system (EPSS) score for CVE-2018-0295

EPSS FAQ

1.07%

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

~ 76 %

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

CVSS scores for CVE-2018-0295

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	AV:N/AC:L/Au:N/C:N/I:N/A:C	10.0	6.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2018-0295

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:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)

References for CVE-2018-0295

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

Cisco NX-OS Software Border Gateway Protocol Denial of Service Vulnerability
Vendor Advisory

Jump to

Vulnerability Details : CVE-2018-0295

Products affected by CVE-2018-0295

Exploit prediction scoring system (EPSS) score for CVE-2018-0295

CVSS scores for CVE-2018-0295

CWE ids for CVE-2018-0295

References for CVE-2018-0295