Details of VAR-202002-0708

ID

VAR-202002-0708

CVE

CVE-2020-3111

TITLE

Cisco IP Phone Input verification vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2020-001687

DESCRIPTION

A vulnerability in the Cisco Discovery Protocol implementation for the Cisco IP Phone could allow an unauthenticated, adjacent attacker to remotely execute code with root privileges or cause a reload of an affected IP phone. The vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to the targeted IP phone. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). (DoS) It may be put into a state. Cisco IP Conference Phone 7832 and Cisco IP Conference Phone 8832 are all IP phone series products

Trust: 2.16

sources: NVD: CVE-2020-3111 // JVNDB: JVNDB-2020-001687 // CNVD: CNVD-2020-14803

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-14803

AFFECTED PRODUCTS

vendor:	cisco	model:	ip phone 8811 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip conference phone 7832 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 6841	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 7841 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip conference phone 8832	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip phone 7811	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip phone 7861 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 8865 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	wireless ip phone 8821	scope:	lt	version:	11.0\(5\)sr2	Trust: 1.0
vendor:	cisco	model:	ip phone 6861	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 7821	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip phone 8865	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	unified ip conference phone 8831	scope:	lt	version:	10.3\(1\)sr6	Trust: 1.0
vendor:	cisco	model:	ip phone 8851 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 7861	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	wireless ip phone 8821-ex	scope:	lt	version:	11.0\(5\)sr2	Trust: 1.0
vendor:	cisco	model:	ip phone 7811 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip conference phone 8832 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 8811	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip phone 8861 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 6821	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	unified ip conference phone 8831 for third-party call control	scope:	eq	version:	-	Trust: 1.0
vendor:	cisco	model:	ip phone 6851	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 8841 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 6871	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 8845 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 8845	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip conference phone 7832	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip phone 7821 with multiplatform	scope:	lt	version:	11.3\(1\)sr1	Trust: 1.0
vendor:	cisco	model:	ip phone 8841	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip phone 8861	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip phone 8851	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip phone 7841	scope:	lt	version:	12.7\(1\)	Trust: 1.0
vendor:	cisco	model:	ip conference phone 7832 with multiplatform	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip conference phone 7832	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip conference phone 8832 with multiplatform	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip conference phone 8832	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip phone 6821	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip phone 6841	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip phone 6851	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip phone 6861	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip phone 6871	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip phone 7811	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	ip conference phone	scope:	eq	version:	7832	Trust: 0.6
vendor:	cisco	model:	ip conference phone	scope:	eq	version:	8832	Trust: 0.6

sources: CNVD: CNVD-2020-14803 // JVNDB: JVNDB-2020-001687 // NVD: CVE-2020-3111

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-3111
value:	HIGH
Trust: 1.0
ykramarz@cisco.com:	CVE-2020-3111
value:	HIGH
Trust: 1.0
NVD:	JVNDB-2020-001687
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2020-14803
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202002-128
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2020-3111
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	6.5
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
NVD:	JVNDB-2020-001687
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
CNVD:	CNVD-2020-14803
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	6.5
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2020-3111
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.1
Trust: 1.0
ykramarz@cisco.com:	CVE-2020-3111
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.0
Trust: 1.0
NVD:	JVNDB-2020-001687
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2020-14803 // JVNDB: JVNDB-2020-001687 // CNNVD: CNNVD-202002-128 // NVD: CVE-2020-3111 // NVD: CVE-2020-3111

PROBLEMTYPE DATA

problemtype:

CWE-20

Trust: 1.8

sources: JVNDB: JVNDB-2020-001687 // NVD: CVE-2020-3111

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202002-128

TYPE

input validation error

Trust: 0.6

sources: CNNVD: CNNVD-202002-128

CONFIGURATIONS

sources: JVNDB: JVNDB-2020-001687

PATCH

title:	cisco-sa-20200205-voip-phones-rce-dos	url:	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-voip-phones-rce-dos	Trust: 0.8
title:	Patch for Cisco IP Phone Remote Code Execution Vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/206253	Trust: 0.6
title:	Cisco IP Phone Cisco Discovery Protocol Enter the fix for the verification error vulnerability	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=108694	Trust: 0.6

sources: CNVD: CNVD-2020-14803 // JVNDB: JVNDB-2020-001687 // CNNVD: CNNVD-202002-128

EXTERNAL IDS

db:	NVD	id:	CVE-2020-3111	Trust: 3.1
db:	PACKETSTORM	id:	156203	Trust: 1.7
db:	JVN	id:	JVNVU95679983	Trust: 0.8
db:	JVNDB	id:	JVNDB-2020-001687	Trust: 0.8
db:	CNVD	id:	CNVD-2020-14803	Trust: 0.6
db:	AUSCERT	id:	ESB-2020.0424.6	Trust: 0.6
db:	AUSCERT	id:	ESB-2020.0424.5	Trust: 0.6
db:	AUSCERT	id:	ESB-2020.0424.7	Trust: 0.6
db:	AUSCERT	id:	ESB-2020.0424.3	Trust: 0.6
db:	AUSCERT	id:	ESB-2020.0424.9	Trust: 0.6
db:	NSFOCUS	id:	45784	Trust: 0.6
db:	CNNVD	id:	CNNVD-202002-128	Trust: 0.6

sources: CNVD: CNVD-2020-14803 // JVNDB: JVNDB-2020-001687 // PACKETSTORM: 156203 // CNNVD: CNNVD-202002-128 // NVD: CVE-2020-3111

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2020-3111	Trust: 2.1
url:	https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20200205-voip-phones-rce-dos	Trust: 1.6
url:	http://packetstormsecurity.com/files/156203/cisco-discovery-protocol-cdp-remote-device-takeover.html	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-3111	Trust: 0.8
url:	https://jvn.jp/vu/jvnvu95679983/	Trust: 0.8
url:	https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20200205-ipcameras-rce-dos	Trust: 0.6
url:	https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20200205-iosxr-cdp-rce	Trust: 0.6
url:	https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20200205-fxnxos-iosxr-cdp-dos	Trust: 0.6
url:	https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20200205-nxos-cdp-rce	Trust: 0.6
url:	http://www.nsfocus.net/vulndb/45784	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2020.0424.9/	Trust: 0.6
url:	https://vigilance.fr/vulnerability/cisco-ip-phone-code-execution-via-cisco-discovery-protocol-31525	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2020.0424.7/	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2020.0424.6/	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2020.0424.5/	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2020.0424.3/	Trust: 0.6
url:	https://nvd.nist.gov/vuln/detail/cve-2020-3110	Trust: 0.1
url:	https://nvd.nist.gov/vuln/detail/cve-2020-3120	Trust: 0.1
url:	https://nvd.nist.gov/vuln/detail/cve-2020-3118	Trust: 0.1
url:	https://nvd.nist.gov/vuln/detail/cve-2020-3119	Trust: 0.1

sources: CNVD: CNVD-2020-14803 // JVNDB: JVNDB-2020-001687 // PACKETSTORM: 156203 // CNNVD: CNNVD-202002-128 // NVD: CVE-2020-3111

CREDITS

Yuval Sarel,Barak Hadad, Ben Seri

Trust: 0.6

sources: CNNVD: CNNVD-202002-128

SOURCES

db:	CNVD	id:	CNVD-2020-14803
db:	JVNDB	id:	JVNDB-2020-001687
db:	PACKETSTORM	id:	156203
db:	CNNVD	id:	CNNVD-202002-128
db:	NVD	id:	CVE-2020-3111

LAST UPDATE DATE

2024-11-23T21:51:40.071000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-14803	date:	2020-03-02T00:00:00
db:	JVNDB	id:	JVNDB-2020-001687	date:	2020-02-21T00:00:00
db:	CNNVD	id:	CNNVD-202002-128	date:	2021-01-05T00:00:00
db:	NVD	id:	CVE-2020-3111	date:	2024-11-21T05:30:20.897

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-14803	date:	2020-03-02T00:00:00
db:	JVNDB	id:	JVNDB-2020-001687	date:	2020-02-21T00:00:00
db:	PACKETSTORM	id:	156203	date:	2020-02-05T17:05:56
db:	CNNVD	id:	CNNVD-202002-128	date:	2020-02-05T00:00:00
db:	NVD	id:	CVE-2020-3111	date:	2020-02-05T18:15:10.783