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MitreCVE-2017-9488

HistoryJul 31, 2017 - 3:29 a.m.

CVE-2017-9488

2017-07-3103:29:00

CWE-798

mitre

web.nvd.nist.gov

comcast

firmware

cisco

dpc3939

dpc3941t

remote access

web ui

vulnerability

cve-2017-9488

CVSS2

5.8

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:A/AC:L/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.6

Confidence

High

EPSS

0.003

Percentile

70.4%

JSON

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) and DPC3941T (firmware version DPC3941_2.5s3_PROD_sey) devices allows remote attackers to access the web UI by establishing a session to the wan0 WAN IPv6 address and then entering unspecified hardcoded credentials. This wan0 interface cannot be accessed from the public Internet.

Affected configurations

Nvd

Node

ciscodpc3939_firmwareMatchdpc3939-p20-18-v303r20421746-170221a-cmcst

AND

ciscodpc3939Match-

Node

ciscodpc3941t_firmwareMatchdpc3941_2.5s3_prod_sey

AND

ciscodpc3941tMatch-

VendorProductVersionCPE
ciscodpc3939_firmwaredpc3939-p20-18-v303r20421746-170221a-cmcstcpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst:*:*:*:*:*:*:*
ciscodpc3939-cpe:2.3:h:cisco:dpc3939:-:*:*:*:*:*:*:*
ciscodpc3941t_firmwaredpc3941_2.5s3_prod_seycpe:2.3:o:cisco:dpc3941t_firmware:dpc3941_2.5s3_prod_sey:*:*:*:*:*:*:*
ciscodpc3941t-cpe:2.3:h:cisco:dpc3941t:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	dpc3939_firmware	dpc3939-p20-18-v303r20421746-170221a-cmcst	cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst:::::::*
cisco	dpc3939	-	cpe:2.3:h:cisco:dpc3939:-:::::::*
cisco	dpc3941t_firmware	dpc3941_2.5s3_prod_sey	cpe:2.3:o:cisco:dpc3941t_firmware:dpc3941_2.5s3_prod_sey:::::::*
cisco	dpc3941t	-	cpe:2.3:h:cisco:dpc3941t:-:::::::*

References

github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-31.stb-remote-webui.txt

CVSS2

5.8

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:A/AC:L/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.6

Confidence

High

EPSS

0.003

Percentile

70.4%

JSON

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