Swisscom DSL Router Centro Grande up to 6.12.02 HNDS Service access control

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.
8.8	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Swisscom DSL Router Centro Grande up to 6.12.02. The affected element is an unknown function of the component HNDS Service. The manipulation leads to access control. This vulnerability is documented as CVE-2015-1188. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Swisscom DSL Router Centro Grande up to 6.12.02 (Router Operating System) and classified as critical. This issue affects an unknown code of the component HNDS Service. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The certificate verification functions in the HNDS service in Swisscom Centro Grande (ADB) DSL routers with firmware before 6.14.00 allows remote attackers to access the management functions via unknown vectors.

The weakness was released 04/29/2015 by Ivan Almuina with Hacking Corporation Sàrl as CVE-ID 2015-1188: Swisscom DSL Router Centro Grande (ADB) as confirmed mailinglist post (Full-Disclosure) via Swisscom CSIRT. It is possible to read the advisory at seclists.org. The public release was coordinated with Swisscom. The identification of this vulnerability is CVE-2015-1188 since 01/17/2015. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a private exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:

The flaw allows an attacker to have access to management functions that are normally reserved for the Swisscom support. Furthermore, this vulnerability combined with other vulnerabilities allow to completely compromise the Centro Grande (ADB) routers. Available Proof-of-Concept code enables a remote root shell on a victim's router.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 157 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 6.14.00 eliminates this vulnerability. The upgrade is hosted for download at swisscom.ch.

The vulnerability is also documented in the vulnerability database at X-Force (102874). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Swisscom

Name

DSL Router Centro Grande

Version

6.12.02

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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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

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: DSL Router Centro Grande 6.14.00

Timelineinfo

11/23/2014 🔍
01/17/2015 +55 days 🔍
04/29/2015 +102 days 🔍
05/05/2015 +6 days 🔍
05/20/2015 +15 days 🔍
03/23/2019 +1403 days 🔍

Sourcesinfo

Advisory: CVE-ID 2015-1188: Swisscom DSL Router Centro Grande (ADB)
Researcher: Ivan Almuina
Organization: Hacking Corporation Sàrl
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2015-1188 (🔍)
GCVE (CVE): GCVE-0-2015-1188
GCVE (VulDB): GCVE-100-75191
X-Force: 102874 - Swisscom DSL Router Centro Grande security bypass

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/05/2015 09:52
Updated: 03/23/2019 22:35
Changes: 05/05/2015 09:52 (52), 03/23/2019 22:35 (13)
Complete: 🔍
Cache ID: 216::103