Technicolor DPC3928AD Port 4321 Service GET Request File information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

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).

Productinfo

Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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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
ATT&CK: T1592

Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 🔍
10/31/2019 +832 days 🔍

Sourcesinfo

Advisory: blogs.securiteam.com
Status: Not defined

CVE: CVE-2017-11502 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/21/2017 15:36
Updated: 10/31/2019 08:29
Changes: 07/21/2017 15:36 (62), 10/31/2019 08:29 (4)
Complete: 🔍

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