Details of VAR-201707-1043

ID

VAR-201707-1043

CVE

CVE-2017-9478

TITLE

Cisco DPC3939 Vulnerable to information disclosure

Trust: 0.8

sources: JVNDB: JVNDB-2017-006591

DESCRIPTION

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices sets the CM MAC address to a value with a two-byte offset from the MTA/VoIP MAC address, which indirectly allows remote attackers to discover hidden Home Security Wi-Fi networks by leveraging the embedding of the MTA/VoIP MAC address into the DNS hostname. Cisco DPC3939 Contains an information disclosure vulnerability.Information may be obtained. The Cisco DPC3939 is a wireless voice gateway product from Cisco. A security vulnerability exists in the Cisco DPC3939 firmware. Comcast is a set of US Comcast ( Comcast ) company developed firmware

Trust: 2.25

sources: NVD: CVE-2017-9478 // JVNDB: JVNDB-2017-006591 // CNVD: CNVD-2017-27790 // VULHUB: VHN-117681

IOT TAXONOMY

category:	['Network device']	sub_category:	-	Trust: 0.6
category:	['network device']	sub_category:	gateway	Trust: 0.1

sources: OTHER: None // CNVD: CNVD-2017-27790

AFFECTED PRODUCTS

vendor:	cisco	model:	dpc3939	scope:	eq	version:	dpc3939-p20-18-v303r20421733-160420a-cmcst	Trust: 1.6
vendor:	cisco	model:	dpc3939	scope:	eq	version:	dpc3939-p20-18-v303r20421746-170221a-cmcst	Trust: 1.6
vendor:	cisco	model:	dpc3939 wireless residential voice gateway	scope:	eq	version:	dpc3939-p20-18-v303r20421733-160420a-cmcst	Trust: 0.8
vendor:	cisco	model:	dpc3939 wireless residential voice gateway	scope:	eq	version:	dpc3939-p20-18-v303r20421746-170221a-cmcst	Trust: 0.8
vendor:	cisco	model:	dpc3939 dpc3939-p20-18-v303r20421746-170221a-cmcst	scope:	-	version:	-	Trust: 0.6
vendor:	cisco	model:	dpc3939 dpc3939-p20-18-v303r20421733-160420a-cmcst	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2017-27790 // JVNDB: JVNDB-2017-006591 // CNNVD: CNNVD-201706-271 // NVD: CVE-2017-9478

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2017-9478
value:	HIGH
Trust: 1.0
NVD:	CVE-2017-9478
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2017-27790
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-201706-271
value:	MEDIUM
Trust: 0.6
VULHUB:	VHN-117681
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2017-9478
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2017-27790
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6
VULHUB:	VHN-117681
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2017-9478
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.0
Trust: 1.8

sources: CNVD: CNVD-2017-27790 // VULHUB: VHN-117681 // JVNDB: JVNDB-2017-006591 // CNNVD: CNNVD-201706-271 // NVD: CVE-2017-9478

PROBLEMTYPE DATA

problemtype:

CWE-200

Trust: 1.9

sources: VULHUB: VHN-117681 // JVNDB: JVNDB-2017-006591 // NVD: CVE-2017-9478

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201706-271

TYPE

information disclosure

Trust: 0.6

sources: CNNVD: CNNVD-201706-271

CONFIGURATIONS

sources: JVNDB: JVNDB-2017-006591

PATCH

title:

トップページ

url:

https://www.cisco.com/c/ja_jp/index.html

Trust: 0.8

sources: JVNDB: JVNDB-2017-006591

EXTERNAL IDS

db:	NVD	id:	CVE-2017-9478	Trust: 3.2
db:	JVNDB	id:	JVNDB-2017-006591	Trust: 0.8
db:	CNNVD	id:	CNNVD-201706-271	Trust: 0.7
db:	CNVD	id:	CNVD-2017-27790	Trust: 0.6
db:	OTHER	id:	NONE	Trust: 0.1
db:	VULHUB	id:	VHN-117681	Trust: 0.1

sources: OTHER: None // CNVD: CNVD-2017-27790 // VULHUB: VHN-117681 // JVNDB: JVNDB-2017-006591 // CNNVD: CNNVD-201706-271 // NVD: CVE-2017-9478

REFERENCES

url:	https://github.com/bastilleresearch/cabletap/blob/master/doc/advisories/bastille-20.emta-reverse-dns.txt	Trust: 2.5
url:	https://nvd.nist.gov/vuln/detail/cve-2017-9478	Trust: 1.4
url:	http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-9478	Trust: 0.8
url:	https://ieeexplore.ieee.org/abstract/document/10769424	Trust: 0.1

sources: OTHER: None // CNVD: CNVD-2017-27790 // VULHUB: VHN-117681 // JVNDB: JVNDB-2017-006591 // CNNVD: CNNVD-201706-271 // NVD: CVE-2017-9478

SOURCES

db:	OTHER	id:	-
db:	CNVD	id:	CNVD-2017-27790
db:	VULHUB	id:	VHN-117681
db:	JVNDB	id:	JVNDB-2017-006591
db:	CNNVD	id:	CNNVD-201706-271
db:	NVD	id:	CVE-2017-9478

LAST UPDATE DATE

2025-04-20T22:32:02.129000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2017-27790	date:	2017-09-21T00:00:00
db:	VULHUB	id:	VHN-117681	date:	2017-08-03T00:00:00
db:	JVNDB	id:	JVNDB-2017-006591	date:	2017-08-30T00:00:00
db:	CNNVD	id:	CNNVD-201706-271	date:	2017-11-29T00:00:00
db:	NVD	id:	CVE-2017-9478	date:	2025-04-20T01:37:25.860

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2017-27790	date:	2017-09-21T00:00:00
db:	VULHUB	id:	VHN-117681	date:	2017-07-31T00:00:00
db:	JVNDB	id:	JVNDB-2017-006591	date:	2017-08-30T00:00:00
db:	CNNVD	id:	CNNVD-201706-271	date:	2017-06-09T00:00:00
db:	NVD	id:	CVE-2017-9478	date:	2017-07-31T03:29:00.300