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CVE-2017-12231
HIGHCISA KEV7.5
Description
A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to the improper translation of H.323 messages that use the Registration, Admission, and Status (RAS) protocol and are sent to an affected device via IPv4 packets. An attacker could exploit this vulnerability by sending a crafted H.323 RAS packet through an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition. This vulnerability affects Cisco devices that are configured to use an application layer gateway with NAT (NAT ALG) for H.323 RAS messages. By default, a NAT ALG is enabled for H.323 RAS messages. Cisco Bug IDs: CSCvc57217.
CVE Details
CVSS v3.1 Score7.5
SeverityHIGH
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
Published9/29/2017
Last Modified4/21/2026
Sourcekev
Honeypot Sightings0
CISA KEV
VendorCisco
ProductIOS software
Vulnerability NameCisco IOS Software Network Address Translation Denial-of-Service Vulnerability
KEV Date Added2022-03-03
Remediation Due Date2022-03-24
Ransomware UseUnknown
Affected Products
cisco: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:1100_terminal_services_gatewayscisco: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: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: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:9800-40cisco:9800-80cisco:9800-clcisco:9800-lcisco:asr_1000cisco:asr_1000-esp100cisco:asr_1000-esp100-xcisco:asr_1000-esp200-xcisco:asr_1001cisco:asr_1001-hxcisco:asr_1001-hx_rcisco:asr_1001-xcisco:asr_1001-x_rcisco:asr_1002-hxcisco:asr_1002-hx_rcisco:asr_1002-xcisco:asr_1002-x_rcisco:asr_1002_fixed_routercisco:asr_1004cisco:asr_1006cisco:asr_1006-xcisco:asr_1009-xcisco:asr_1013cisco:asr_1023cisco:asr_900cisco:asr_9000cisco:asr_9000vcisco:asr_9001cisco:asr_9006cisco: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_9010cisco: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:asr_903cisco:asr_907cisco:asr_914cisco:asr_920-10sz-pdcisco:asr_920-10sz-pd_rcisco:asr_920-12cz-acisco:asr_920-12cz-a_rcisco:asr_920-12cz-dcisco:asr_920-12cz-d_rcisco:asr_920-12sz-imcisco:asr_920-12sz-im_rcisco:asr_920-24sz-imcisco:asr_920-24sz-im_rcisco:asr_920-24sz-mcisco:asr_920-24sz-m_rcisco:asr_920-24tz-mcisco:asr_920-24tz-m_rcisco:asr_920-4sz-acisco:asr_920-4sz-a_rcisco:asr_920-4sz-dcisco:asr_920-4sz-d_rcisco:asr_920u-12sz-imcisco:asr_9901cisco:asr_9902cisco:asr_9903cisco:asr_9904cisco:asr_9906cisco:asr_9910cisco:asr_9912cisco:asr_9920cisco:asr_9922cisco:catalyst_3650cisco:catalyst_3650-12x48fd-ecisco:catalyst_3650-12x48fd-lcisco:catalyst_3650-12x48fd-scisco:catalyst_3650-12x48uqcisco:catalyst_3650-12x48uq-ecisco:catalyst_3650-12x48uq-lcisco:catalyst_3650-12x48uq-scisco:catalyst_3650-12x48urcisco:catalyst_3650-12x48ur-ecisco:catalyst_3650-12x48ur-lcisco:catalyst_3650-12x48ur-scisco:catalyst_3650-12x48uzcisco:catalyst_3650-12x48uz-ecisco:catalyst_3650-12x48uz-lcisco:catalyst_3650-12x48uz-scisco:catalyst_3650-24pdcisco:catalyst_3650-24pd-ecisco:catalyst_3650-24pd-lcisco:catalyst_3650-24pd-scisco:catalyst_3650-24pdmcisco:catalyst_3650-24pdm-ecisco:catalyst_3650-24pdm-lcisco:catalyst_3650-24pdm-scisco:catalyst_3650-24ps-ecisco:catalyst_3650-24ps-lcisco:catalyst_3650-24ps-scisco:catalyst_3650-24td-ecisco:catalyst_3650-24td-lcisco:catalyst_3650-24td-scisco:catalyst_3650-24ts-ecisco:catalyst_3650-24ts-lcisco:catalyst_3650-24ts-scisco:catalyst_3650-48fd-ecisco:catalyst_3650-48fd-lcisco:catalyst_3650-48fd-scisco:catalyst_3650-48fqcisco:catalyst_3650-48fq-ecisco:catalyst_3650-48fq-lcisco:catalyst_3650-48fq-scisco:catalyst_3650-48fqmcisco:catalyst_3650-48fqm-ecisco:catalyst_3650-48fqm-lcisco:catalyst_3650-48fqm-scisco:catalyst_3650-48fs-ecisco:catalyst_3650-48fs-lcisco:catalyst_3650-48fs-scisco:catalyst_3650-48pd-ecisco:catalyst_3650-48pd-lcisco:catalyst_3650-48pd-scisco:catalyst_3650-48pq-ecisco:catalyst_3650-48pq-lcisco:catalyst_3650-48pq-scisco:catalyst_3650-48ps-ecisco:catalyst_3650-48ps-lcisco:catalyst_3650-48ps-scisco:catalyst_3650-48td-ecisco:catalyst_3650-48td-lcisco:catalyst_3650-48td-scisco:catalyst_3650-48tq-ecisco:catalyst_3650-48tq-lcisco:catalyst_3650-48tq-scisco:catalyst_3650-48ts-ecisco:catalyst_3650-48ts-lcisco:catalyst_3650-48ts-scisco:catalyst_3650-8x24pd-ecisco:catalyst_3650-8x24pd-lcisco:catalyst_3650-8x24pd-scisco:catalyst_3650-8x24uqcisco:catalyst_3650-8x24uq-ecisco:catalyst_3650-8x24uq-lcisco:catalyst_3650-8x24uq-scisco:catalyst_3850cisco:catalyst_3850-12s-ecisco:catalyst_3850-12s-scisco:catalyst_3850-12x48ucisco:catalyst_3850-12xs-ecisco:catalyst_3850-12xs-scisco:catalyst_3850-16xs-ecisco:catalyst_3850-16xs-scisco:catalyst_3850-24p-ecisco:catalyst_3850-24p-lcisco:catalyst_3850-24p-scisco:catalyst_3850-24pw-scisco:catalyst_3850-24s-ecisco:catalyst_3850-24s-scisco:catalyst_3850-24t-ecisco:catalyst_3850-24t-lcisco:catalyst_3850-24t-scisco:catalyst_3850-24ucisco:catalyst_3850-24u-ecisco:catalyst_3850-24u-lcisco:catalyst_3850-24u-scisco:catalyst_3850-24xscisco:catalyst_3850-24xs-ecisco:catalyst_3850-24xs-scisco:catalyst_3850-24xucisco:catalyst_3850-24xu-ecisco:catalyst_3850-24xu-lcisco:catalyst_3850-24xu-scisco:catalyst_3850-32xs-ecisco:catalyst_3850-32xs-scisco:catalyst_3850-48f-ecisco:catalyst_3850-48f-lcisco:catalyst_3850-48f-scisco:catalyst_3850-48p-ecisco:catalyst_3850-48p-lcisco:catalyst_3850-48p-scisco:catalyst_3850-48pw-scisco:catalyst_3850-48t-ecisco:catalyst_3850-48t-lcisco:catalyst_3850-48t-scisco:catalyst_3850-48ucisco:catalyst_3850-48u-ecisco:catalyst_3850-48u-lcisco:catalyst_3850-48u-scisco:catalyst_3850-48xscisco:catalyst_3850-48xs-ecisco:catalyst_3850-48xs-f-ecisco:catalyst_3850-48xs-f-scisco:catalyst_3850-48xs-scisco:catalyst_3850-nm-2-40gcisco:catalyst_3850-nm-8-10gcisco: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_9500cisco:catalyst_9500hcisco:catalyst_9600cisco:catalyst_9600_supervisor_engine-1cisco:catalyst_9600xcisco:catalyst_9800cisco:catalyst_9800-40cisco:catalyst_9800-40_wireless_controllercisco:catalyst_9800-80cisco:catalyst_9800-80_wireless_controllercisco:catalyst_9800-clcisco:catalyst_9800-lcisco:catalyst_9800-l-ccisco:catalyst_9800-l-fcisco:catalyst_9800_embedded_wireless_controllercisco:catalyst_ie3200_rugged_switchcisco:catalyst_ie3300_rugged_switchcisco:ios
Weaknesses (CWE)
CWE-399
References
http://www.securityfocus.com/bid/101039(psirt@cisco.com)
http://www.securitytracker.com/id/1039449(psirt@cisco.com)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-nat(psirt@cisco.com)
http://www.securityfocus.com/bid/101039(af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1039449(af854a3a-2127-422b-91ae-364da2661108)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-nat(af854a3a-2127-422b-91ae-364da2661108)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12231(134c704f-9b21-4f2e-91b3-4a467353bcc0)
IOC Correlations
No correlations recorded
This product uses data from the NVD API but is not endorsed or certified by the NVD.