Savitech Driver Package on Windows certificate validation

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.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Savitech Driver Package on Windows and classified as problematic. Affected is an unknown function. This manipulation causes certificate validation. This vulnerability appears as CVE-2017-9758. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in Savitech Driver Package on Windows (Hardware Driver Software) (the affected version unknown) and classified as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Savitech driver packages for Windows silently install a self-signed certificate into the Trusted Root Certification Authorities store, aka "Inaudible Subversion."

The bug was discovered 11/02/2017. The weakness was presented 11/10/2017 as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. This vulnerability is known as CVE-2017-9758 since 06/19/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k.

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101700†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Hardware Driver Software

Vendor

Savitech

Name

Driver Package

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
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

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/19/2017 🔍
11/02/2017 +136 days 🔍
11/06/2017 +4 days 🔍
11/09/2017 +3 days 🔍
11/10/2017 +1 days 🔍
11/10/2017 +0 days 🔍
12/25/2024 +2602 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Kent Backman
Status: Confirmed

CVE: CVE-2017-9758 (🔍)
GCVE (CVE): GCVE-0-2017-9758
GCVE (VulDB): GCVE-100-109273
CERT: 🔍
SecurityFocus: 101700 - Savitech USB Audio Driver CVE-2017-9758 Security Bypass Vulnerability

Entryinfo

Created: 11/10/2017 13:54
Updated: 12/25/2024 21:19
Changes: 11/10/2017 13:54 (60), 12/05/2019 15:10 (3), 01/23/2021 10:18 (2), 12/25/2024 21:19 (15)
Complete: 🔍
Cache ID: 216::103

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