CVE-2017-12319

MEDIUMCISA KEV

5.9

Description

A vulnerability in the Border Gateway Protocol (BGP) over an Ethernet Virtual Private Network (EVPN) for Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a denial of service (DoS) condition, or potentially corrupt the BGP routing table, which could result in network instability. The vulnerability exists due to changes in the implementation of the BGP MPLS-Based Ethernet VPN RFC (RFC 7432) draft between IOS XE software releases. When the BGP Inclusive Multicast Ethernet Tag Route or BGP EVPN MAC/IP Advertisement Route update packet is received, it could be possible that the IP address length field is miscalculated. An attacker could exploit this vulnerability by sending a crafted BGP packet to an affected device after the BGP session was established. An exploit could allow the attacker to cause the affected device to reload or corrupt the BGP routing table; either outcome would result in a DoS. The vulnerability may be triggered when the router receives a crafted BGP message from a peer on an existing BGP session. This vulnerability affects all releases of Cisco IOS XE Software prior to software release 16.3 that support BGP EVPN configurations. If the device is not configured for EVPN, it is not vulnerable. Cisco Bug IDs: CSCui67191, CSCvg52875.

Details CVE

Score CVSS v3.15.9

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurNONE

Publie3/27/2018

Derniere modification1/13/2026

Sourcekev

Observations honeypot0

CISA KEV

FournisseurCisco

ProduitIOS XE Software

Nom vulnerabiliteCisco IOS XE Software Ethernet Virtual Private Network Border Gateway Protocol Denial-of-Service Vulnerability

Date ajout KEV2022-03-03

Date limite remediation2022-03-24

Utilise dans ransomwareUnknown

Produits affectes

cisco:1000_integrated_services_routercisco:1100-4g\/6g_integrated_services_routercisco:1100-4g_integrated_services_routercisco:1100-4gltegb_integrated_services_routercisco:1100-4gltena_integrated_services_routercisco:1100-4p_integrated_services_routercisco:1100-6g_integrated_services_routercisco:1100-8p_integrated_services_routercisco:1100-lte_integrated_services_routercisco:1100_integrated_services_routercisco:1101-4p_integrated_services_routercisco:1101_integrated_services_routercisco:1109-2p_integrated_services_routercisco:1109-4p_integrated_services_routercisco:1109_integrated_services_routercisco:1111x-8p_integrated_services_routercisco:1111x_integrated_services_routercisco:111x_integrated_services_routercisco:1120_integrated_services_routercisco:1131_integrated_services_routercisco:1160_integrated_services_routercisco:1801_integrated_service_routercisco:1802_integrated_service_routercisco:1803_integrated_service_routercisco:1811_integrated_service_routercisco:1812_integrated_service_routercisco:1841_integrated_service_routercisco:1861_integrated_service_routercisco:1905_integrated_services_routercisco:1906c_integrated_services_routercisco:1921_integrated_services_routercisco:1941_integrated_services_routercisco:1941w_integrated_services_routercisco:4000_integrated_services_routercisco:4221_integrated_services_routercisco:422_integrated_services_routercisco:4321\/k9-rf_integrated_services_routercisco:4321\/k9-ws_integrated_services_routercisco:4321\/k9_integrated_services_routercisco:4321_integrated_services_routercisco:4331\/k9-rf_integrated_services_routercisco:4331\/k9-ws_integrated_services_routercisco:4331\/k9_integrated_services_routercisco:4331_integrated_services_routercisco:4351\/k9-rf_integrated_services_routercisco:4351\/k9-ws_integrated_services_routercisco:4351\/k9_integrated_services_routercisco:4351_integrated_services_routercisco:4431_integrated_services_routercisco:44461_integrated_services_routercisco:4451-x_integrated_services_routercisco:4451_integrated_services_routercisco:4461_integrated_services_routercisco:8101-32fhcisco:8101-32hcisco:8102-64hcisco:8201cisco:8201-32fhcisco:8202cisco:8208cisco:8212cisco:8218cisco:8800_12-slotcisco:8800_18-slotcisco:8800_4-slotcisco:8800_8-slotcisco:8804cisco:8808cisco:8812cisco:8818cisco:8831cisco:9800-40cisco:9800-80cisco:9800-clcisco:9800-lcisco:asr_1000cisco:asr_1000-esp100cisco:asr_1000-esp100-xcisco:asr_1000-esp200-xcisco:asr_1000-xcisco:asr_1001cisco:asr_1001-hxcisco:asr_1001-hx_rcisco:asr_1001-xcisco:asr_1001-x_rcisco:asr_1002cisco:asr_1002-hxcisco:asr_1002-hx_rcisco:asr_1002-xcisco:asr_1002-x_rcisco:asr_1004cisco:asr_1006cisco:asr_1006-xcisco:asr_1009-xcisco:asr_1013cisco:asr_1023cisco:asr_900cisco:asr_901-12c-f-dcisco:asr_901-12c-ft-dcisco:asr_901-4c-f-dcisco:asr_901-4c-ft-dcisco:asr_901-6cz-f-acisco:asr_901-6cz-f-dcisco:asr_901-6cz-fs-acisco:asr_901-6cz-fs-dcisco:asr_901-6cz-ft-acisco:asr_901-6cz-ft-dcisco:asr_901s-2sg-f-ahcisco:asr_901s-2sg-f-dcisco:asr_901s-3sg-f-ahcisco:asr_901s-3sg-f-dcisco:asr_901s-4sg-f-dcisco:asr_902cisco:asr_902ucisco:catalyst_8200cisco:catalyst_8300cisco:catalyst_8300-1n1s-4t2xcisco:catalyst_8300-1n1s-6tcisco:catalyst_8300-2n2s-4t2xcisco:catalyst_8300-2n2s-6tcisco:catalyst_8500cisco:catalyst_8500-4qccisco:catalyst_8500lcisco:catalyst_8510csrcisco:catalyst_8510msrcisco:catalyst_8540csrcisco:catalyst_8540msrcisco:catalyst_9200cisco:catalyst_9200cxcisco:catalyst_9200lcisco:catalyst_9300cisco:catalyst_9300-24p-acisco:catalyst_9300-24p-ecisco:catalyst_9300-24s-acisco:catalyst_9300-24s-ecisco:catalyst_9300-24t-acisco:catalyst_9300-24t-ecisco:catalyst_9300-24u-acisco:catalyst_9300-24u-ecisco:catalyst_9300-24ux-acisco:catalyst_9300-24ux-ecisco:catalyst_9300-48p-acisco:catalyst_9300-48p-ecisco:catalyst_9300-48s-acisco:catalyst_9300-48s-ecisco:catalyst_9300-48t-acisco:catalyst_9300-48t-ecisco:catalyst_9300-48u-acisco:catalyst_9300-48u-ecisco:catalyst_9300-48un-acisco:catalyst_9300-48un-ecisco:catalyst_9300-48uxm-acisco:catalyst_9300-48uxm-ecisco:catalyst_9300lcisco:catalyst_9300l-24p-4g-acisco:catalyst_9300l-24p-4g-ecisco:catalyst_9300l-24p-4x-acisco:catalyst_9300l-24p-4x-ecisco:catalyst_9300l-24t-4g-acisco:catalyst_9300l-24t-4g-ecisco:catalyst_9300l-24t-4x-acisco:catalyst_9300l-24t-4x-ecisco:catalyst_9300l-48p-4g-acisco:catalyst_9300l-48p-4g-ecisco:catalyst_9300l-48p-4x-acisco:catalyst_9300l-48p-4x-ecisco:catalyst_9300l-48t-4g-acisco:catalyst_9300l-48t-4g-ecisco:catalyst_9300l-48t-4x-acisco:catalyst_9300l-48t-4x-ecisco:catalyst_9300l_stackcisco:catalyst_9300lmcisco:catalyst_9300xcisco:catalyst_9400cisco:catalyst_9400_supervisor_engine-1cisco:catalyst_9407rcisco:catalyst_9410rcisco:catalyst_9500cisco:catalyst_9500hcisco:catalyst_9600cisco:catalyst_9600_supervisor_engine-1cisco:catalyst_9600xcisco:catalyst_9800cisco:catalyst_9800-40cisco:catalyst_9800-80cisco:catalyst_9800-clcisco:catalyst_9800-lcisco:catalyst_9800-l-ccisco:catalyst_9800-l-fcisco:catalyst_ie3200_rugged_switchcisco:catalyst_ie3300_rugged_switchcisco:cloud_services_router_1000vcisco:esr-6300-con-k9cisco:esr-6300-ncp-k9cisco:integrated_services_virtual_routercisco:ioscisco:ios_xecisco:network_convergence_system_520

Faiblesses (CWE)

CWE-20

References

http://www.securityfocus.com/bid/101676(psirt@cisco.com)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171103-bgp(psirt@cisco.com)

http://www.securityfocus.com/bid/101676(af854a3a-2127-422b-91ae-364da2661108)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171103-bgp(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12319(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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