CVE-2017-3879

A Denial of Service vulnerability in the remote login functionality for Cisco NX-OS Software running on Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause a process used for login to terminate unexpectedly and the login attempt to fail. There is no impact to user traffic flowing through the device. The attacker could use either a Telnet or an SSH client for the remote login attempt. Affected Products: This vulnerability affects Cisco Nexus 9000 Series Switches that are running Cisco NX-OS Software and are configured to allow remote Telnet connections to the device. More Information: CSCuy25824. Known Affected Releases: 7.0(3)I3(1) 8.3(0)CV(0.342) 8.3(0)CV(0.345). Known Fixed Releases: 8.3(0)CV(0.362) 8.0(1) 7.0(3)IED5(0.19) 7.0(3)IED5(0) 7.0(3)I4(1) 7.0(3)I4(0.8) 7.0(3)I2(2e) 7.0(3)F1(1.22) 7.0(3)F1(1) 7.0(3)F1(0.230).

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://www.securityfocus.com/bid/96920	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038046
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss1	Vendor Advisory
http://www.securityfocus.com/bid/96920	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038046
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss1	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:cisco:nx-os:7.0\(3\)i3\(0.170\):::::::*
	cpe:2.3:o:cisco:nx-os:8.3\(0\)cv\(0.342\):::::::*
	cpe:2.3:o:cisco:nx-os:8.3\(0\)cv\(0.345\):::::::*

OR	cpe:2.3:h:cisco:nexus_92160yc_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_92300yc_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_92304qc_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9236c_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9272q_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_93108tc-ex_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_93120tx_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_93128tx_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_93180lc-ex_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_93180yc-ex_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9332pq_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9336pq_aci_spine_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9372px-e_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9372px_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9372tx-e_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9372tx_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9396px_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9396tx_switch:-:::::::*
	cpe:2.3:h:cisco:nexus_9508_switch:-:::::::*

History

21 Nov 2024, 03:26

Type	Values Removed	Values Added
References	~~() http://www.securityfocus.com/bid/96920 - Third Party Advisory, VDB Entry~~	() http://www.securityfocus.com/bid/96920 - Third Party Advisory, VDB Entry
References	~~() http://www.securitytracker.com/id/1038046 -~~	() http://www.securitytracker.com/id/1038046 -
References	~~() https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss1 - Vendor Advisory~~	() https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss1 - Vendor Advisory

Information

Published : 2017-03-17 22:59

Updated : 2025-04-20 01:37

NVD link : CVE-2017-3879

Mitre link : CVE-2017-3879

CVE.ORG link : CVE-2017-3879

JSON object : View

Products Affected

cisco

nexus_9332pq_switch
nexus_93120tx_switch
nexus_9396px_switch
nexus_93180yc-ex_switch
nexus_9272q_switch
nexus_92300yc_switch
nexus_93108tc-ex_switch
nexus_9372tx-e_switch
nexus_92160yc_switch
nx-os
nexus_9396tx_switch
nexus_92304qc_switch
nexus_93128tx_switch
nexus_9236c_switch
nexus_9508_switch
nexus_9372px-e_switch
nexus_9372tx_switch
nexus_93180lc-ex_switch
nexus_9336pq_aci_spine_switch
nexus_9372px_switch

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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There is no impact to user traffic flowing through the device. The attacker could use either a Telnet or an SSH client for the remote login attempt. Affected Products: This vulnerability affects Cisco Nexus 9000 Series Switches that are running Cisco NX-OS Software and are configured to allow remote Telnet connections to the device. More Information: CSCuy25824. Known Affected Releases: 7.0(3)I3(1) 8.3(0)CV(0.342) 8.3(0)CV(0.345). Known Fixed Releases: 8.3(0)CV(0.362) 8.0(1) 7.0(3)IED5(0.19) 7.0(3)IED5(0) 7.0(3)I4(1) 7.0(3)I4(0.8) 7.0(3)I2(2e) 7.0(3)F1(1.22) 7.0(3)F1(1) 7.0(3)F1(0.230)."}, {"lang": "es", "value": "Una vulnerabilidad de denegaci\u00f3n de servicio en la funcionalidad de inicio de sesi\u00f3n remoto para el software Cisco NX-OS que se ejecuta en Cisco Nexus 9000 Series Switches podr\u00eda permitir a un atacante remoto no autenticado provocar que un proceso utilizado para iniciar sesi\u00f3n termine inesperadamente y que el intento de inicio de sesi\u00f3n fracase. No hay impacto en el tr\u00e1fico de usuarios que fluye a trav\u00e9s del dispositivo. El atacante podr\u00eda utilizar un Telnet o un cliente SSH para el intento de inicio de sesi\u00f3n remoto. Productos afectados: Esta vulnerabilidad afecta a los conmutadores Cisco Nexus serie 9000 que ejecutan el software Cisco NX-OS y est\u00e1n configurados para permitir conexiones Telnet remotas al dispositivo. M\u00e1s informaci\u00f3n: CSCuy25824. Lanzamientos afectados conocidos: 7.0(3)I3(1) 8.3(0)CV(0.342) 8.3(0)CV(0.345). . Lotes fijos conocidos: Known Fixed Releases: 8.3(0)CV(0.362) 8.0(1) 7.0(3)IED5(0.19) 7.0(3)IED5(0) 7.0(3)I4(1) 7.0(3)I4(0.8) 7.0(3)I2(2e) 7.0(3)F1(1.22) 7.0(3)F1(1) 7.0(3)F1(0.230)."}], "lastModified": "2025-04-20T01:37:25.860", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:nx-os:7.0\\(3\\)i3\\(0.170\\):*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2AC5F341-81B9-472D-9AB9-8B04F84EF1B2"}, {"criteria": "cpe:2.3:o:cisco:nx-os:8.3\\(0\\)cv\\(0.342\\):*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7304A486-5925-42D3-A5F3-21671BB3FB2D"}, {"criteria": "cpe:2.3:o:cisco:nx-os:8.3\\(0\\)cv\\(0.345\\):*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A69FDDA8-B18D-483E-B1D5-5DD76A053D18"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:nexus_92160yc_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "AF9147C9-5D8B-40F5-9AAA-66A3495A0AD8"}, {"criteria": "cpe:2.3:h:cisco:nexus_92300yc_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "3AA5389A-8AD1-476E-983A-54DF573C30F5"}, {"criteria": "cpe:2.3:h:cisco:nexus_92304qc_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "C1B1A8F1-45B1-4E64-A254-7191FA93CB6D"}, {"criteria": "cpe:2.3:h:cisco:nexus_9236c_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DB2FFD26-8255-4351-8594-29D2AEFC06EF"}, {"criteria": "cpe:2.3:h:cisco:nexus_9272q_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "61E10975-B47E-4F4D-8096-AEC7B7733612"}, {"criteria": "cpe:2.3:h:cisco:nexus_93108tc-ex_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2C67B7A6-9BB2-41FC-8FA3-8D0DF67CBC68"}, {"criteria": "cpe:2.3:h:cisco:nexus_93120tx_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "182000E0-8204-4D8B-B7DE-B191AFE12E28"}, {"criteria": "cpe:2.3:h:cisco:nexus_93128tx_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "BDC208BC-7E19-48C6-A20E-A79A51B7362C"}, {"criteria": "cpe:2.3:h:cisco:nexus_93180lc-ex_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "084D0191-563B-4FF0-B589-F35DA118E1C6"}, {"criteria": "cpe:2.3:h:cisco:nexus_93180yc-ex_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "968390BC-B430-4903-B614-13104BFAE635"}, {"criteria": "cpe:2.3:h:cisco:nexus_9332pq_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F7B90D36-5124-4669-8462-4EAF35B0F53D"}, {"criteria": "cpe:2.3:h:cisco:nexus_9336pq_aci_spine_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DEAAF99B-5406-4722-81FB-A91CBAC2DF41"}, {"criteria": "cpe:2.3:h:cisco:nexus_9372px-e_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "737C724A-B6CD-4FF7-96E0-EBBF645D660E"}, {"criteria": "cpe:2.3:h:cisco:nexus_9372px_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7067AEC7-DFC8-4437-9338-C5165D9A8F36"}, {"criteria": "cpe:2.3:h:cisco:nexus_9372tx-e_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "71D4CF15-B293-4403-A1A9-96AD3933BAEF"}, {"criteria": "cpe:2.3:h:cisco:nexus_9372tx_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DBCC1515-2DBE-4DF2-8E83-29A869170F36"}, {"criteria": "cpe:2.3:h:cisco:nexus_9396px_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7282AAFF-ED18-4992-AC12-D953C35EC328"}, {"criteria": "cpe:2.3:h:cisco:nexus_9396tx_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "360409CC-4172-4878-A76B-EA1C1F8C7A79"}, {"criteria": "cpe:2.3:h:cisco:nexus_9508_switch:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B76FB64F-16F0-4B0B-B304-B46258D434BA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "psirt@cisco.com"}

5.3 /10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

5.0 /10

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

JSON object

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5.3^/10

5.0^/10

Attach tags to `CVE-2017-3879`