Technicolor DPC3928AD Port 4321 Service GET Request File information disclosure

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Technicolor DPC3928AD. The affected element is an unknown function of the component Port 4321 Service. This manipulation with the input /../ as part of GET Request causes information disclosure (File). This vulnerability is handled as CVE-2017-11502. The attack can be initiated remotely. Additionally, an exploit exists. It is advisable to implement restrictive firewalling.

Detailsinfo

A vulnerability has been found in Technicolor DPC3928AD (version now known) and classified as problematic. Affected by this vulnerability is some unknown processing of the component Port 4321 Service. The manipulation with the input value /../ leads to a information disclosure vulnerability (File). The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

Technicolor DPC3928AD DOCSIS devices allow remote attackers to read arbitrary files via a request starting with "GET /../" on TCP port 4321.

The bug was discovered 05/31/2017. The weakness was released 07/20/2017 (Website). The advisory is shared at blogs.securiteam.com. This vulnerability is known as CVE-2017-11502 since 07/20/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1592 for this issue.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 50 days. During that time the estimated underground price was around $0-$5k.

Proper firewalling of tcp/4321 is able to address this issue.

The vulnerability is also documented in the vulnerability database at Exploit-DB (44070). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Technicolor

Name

DPC3928AD

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

05/31/2017 🔍
07/20/2017 +50 days 🔍
07/20/2017 +0 days 🔍
07/20/2017 +0 days 🔍
07/21/2017 +1 days 🔍
08/25/2024 +2592 days 🔍

Sourcesinfo

Advisory: blogs.securiteam.com⛔
Status: Not defined

CVE: CVE-2017-11502 (🔍)
GCVE (CVE): GCVE-0-2017-11502
GCVE (VulDB): GCVE-100-104341
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/21/2017 15:36
Updated: 08/25/2024 11:40
Changes: 07/21/2017 15:36 (62), 10/31/2019 08:29 (4), 08/25/2024 11:40 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.