Details of VAR-201810-0561

ID

VAR-201810-0561

CVE

CVE-2018-15369

TITLE

Cisco IOS Software and Cisco IOS XE Software input validation vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2018-011568

DESCRIPTION

A vulnerability in the TACACS+ client subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of crafted TACACS+ response packets by the affected software. An attacker could exploit this vulnerability by injecting a crafted TACACS+ packet into an existing TACACS+ session between an affected device and a TACACS+ server or by impersonating a known, valid TACACS+ server and sending a crafted TACACS+ packet to an affected device when establishing a connection to the device. To exploit this vulnerability by using either method, the attacker must know the shared TACACS+ secret and the crafted packet must be sent in response to a TACACS+ request from a TACACS+ client. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. TACACS+ is one of the terminal access control subsystems

Trust: 1.98

sources: NVD: CVE-2018-15369 // JVNDB: JVNDB-2018-011568 // BID: 105426 // VULHUB: VHN-125621

AFFECTED PRODUCTS

vendor:	cisco	model:	ios	scope:	eq	version:	15.6\(1.9\)t	Trust: 1.6
vendor:	cisco	model:	ios xe	scope:	eq	version:	-	Trust: 1.6
vendor:	cisco	model:	ios	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ios xe	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ios xe software	scope:	eq	version:	0	Trust: 0.3
vendor:	cisco	model:	ios	scope:	eq	version:	0	Trust: 0.3

sources: BID: 105426 // JVNDB: JVNDB-2018-011568 // CNNVD: CNNVD-201809-1260 // NVD: CVE-2018-15369

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-15369
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2018-15369
value:	MEDIUM
Trust: 0.8
CNNVD:	CNNVD-201809-1260
value:	MEDIUM
Trust: 0.6
VULHUB:	VHN-125621
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2018-15369
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
VULHUB:	VHN-125621
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2018-15369
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	HIGH
privilegesRequired:	NONE
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	2.2
impactScore:	4.0
version:	3.0
Trust: 1.8

sources: VULHUB: VHN-125621 // JVNDB: JVNDB-2018-011568 // CNNVD: CNNVD-201809-1260 // NVD: CVE-2018-15369

PROBLEMTYPE DATA

problemtype:

CWE-20

Trust: 1.9

sources: VULHUB: VHN-125621 // JVNDB: JVNDB-2018-011568 // NVD: CVE-2018-15369

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201809-1260

TYPE

Input Validation Error

Trust: 0.9

sources: BID: 105426 // CNNVD: CNNVD-201809-1260

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-011568

PATCH

title:	cisco-sa-20180926-tacplus	url:	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-tacplus	Trust: 0.8
title:	Cisco IOS Software and IOS XE Software TACACS+ Repair measures for customer terminal system input verification vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=85269	Trust: 0.6

sources: JVNDB: JVNDB-2018-011568 // CNNVD: CNNVD-201809-1260

EXTERNAL IDS

db:	NVD	id:	CVE-2018-15369	Trust: 2.8
db:	BID	id:	105426	Trust: 2.0
db:	JVNDB	id:	JVNDB-2018-011568	Trust: 0.8
db:	CNNVD	id:	CNNVD-201809-1260	Trust: 0.7
db:	VULHUB	id:	VHN-125621	Trust: 0.1

sources: VULHUB: VHN-125621 // BID: 105426 // JVNDB: JVNDB-2018-011568 // CNNVD: CNNVD-201809-1260 // NVD: CVE-2018-15369

REFERENCES

url:	https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20180926-tacplus	Trust: 2.0
url:	http://www.securityfocus.com/bid/105426	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-15369	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2018-15369	Trust: 0.8
url:	http://www.cisco.com/	Trust: 0.3

sources: VULHUB: VHN-125621 // BID: 105426 // JVNDB: JVNDB-2018-011568 // CNNVD: CNNVD-201809-1260 // NVD: CVE-2018-15369

CREDITS

The vendor reported this issue.

Trust: 0.3

sources: BID: 105426

SOURCES

db:	VULHUB	id:	VHN-125621
db:	BID	id:	105426
db:	JVNDB	id:	JVNDB-2018-011568
db:	CNNVD	id:	CNNVD-201809-1260
db:	NVD	id:	CVE-2018-15369

LAST UPDATE DATE

2024-11-23T22:30:12.888000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-125621	date:	2019-10-09T00:00:00
db:	BID	id:	105426	date:	2018-09-26T00:00:00
db:	JVNDB	id:	JVNDB-2018-011568	date:	2019-01-17T00:00:00
db:	CNNVD	id:	CNNVD-201809-1260	date:	2019-10-17T00:00:00
db:	NVD	id:	CVE-2018-15369	date:	2024-11-21T03:50:38.440

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-125621	date:	2018-10-05T00:00:00
db:	BID	id:	105426	date:	2018-09-26T00:00:00
db:	JVNDB	id:	JVNDB-2018-011568	date:	2019-01-17T00:00:00
db:	CNNVD	id:	CNNVD-201809-1260	date:	2018-09-28T00:00:00
db:	NVD	id:	CVE-2018-15369	date:	2018-10-05T14:29:05.997