Comcast DPC3939/DPC3941T WAN IPv6 MAC Address information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Comcast DPC3939 and DPC3941T. It has been rated as problematic. This vulnerability affects unknown code of the component WAN IPv6 Handler. The manipulation as part of MAC Address leads to information disclosure. This vulnerability is uniquely identified as CVE-2017-9487. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Comcast DPC3939 and DPC3941T (version unknown) and classified as problematic. This issue affects an unknown function of the component WAN IPv6 Handler. The manipulation as part of a MAC Address leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

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 discover a WAN IPv6 IP address by leveraging knowledge of the CM MAC address.

The bug was discovered 07/30/2017. The weakness was disclosed 07/31/2017 (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2017-9487 since 06/07/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entry VDB-104658 is pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.8

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/07/2017 🔍
07/30/2017 +53 days 🔍
07/30/2017 +0 days 🔍
07/31/2017 +1 days 🔍
07/31/2017 +0 days 🔍
11/02/2019 +824 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2017-9487 (🔍)
GCVE (CVE): GCVE-0-2017-9487
GCVE (VulDB): GCVE-100-104657
See also: 🔍

Entryinfo

Created: 07/31/2017 10:24
Updated: 11/02/2019 14:16
Changes: 07/31/2017 10:24 (55), 11/02/2019 14:16 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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