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.
4.2	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in wolfSSL up to 3.10.1. This vulnerability affects the function fp_mul_comba of the component Cache. Such manipulation leads to information disclosure (Key). This vulnerability is uniquely identified as CVE-2017-6076. Local access is required to approach this attack. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in wolfSSL up to 3.10.1 and classified as problematic. Affected by this issue is the function fp_mul_comba of the component Cache. The manipulation with an unknown input leads to a information disclosure vulnerability (Key). 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. CVE summarizes:

In versions of wolfSSL before 3.10.2 the function fp_mul_comba makes it easier to extract RSA key information for a malicious user who has access to view cache on a machine.

The bug was discovered 03/07/2017. The weakness was disclosed 02/24/2017 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2017-6076 since 02/17/2017. The attack needs to be approached locally. A simple authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 3.10.2 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 96422†). The entry VDB-100982 is pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• wolfSSL

Version

• 3.10.0
• 3.10.1

License

• open-source

Website

• Product: https://github.com/wolfSSL/wolfssl/

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: Key
Class: Information disclosure / Key
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: Upgrade
Status: 🔍
Upgrade: wolfSSL 3.10.2

Timelineinfo

02/17/2017 🔍
02/23/2017 +6 days 🔍
02/23/2017 +0 days 🔍
02/24/2017 +1 days 🔍
02/24/2017 +0 days 🔍
03/07/2017 +11 days 🔍
08/16/2020 +1258 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6076 (🔍)
GCVE (CVE): GCVE-0-2017-6076
GCVE (VulDB): GCVE-100-97232
SecurityFocus: 96422 - wolfSSL CVE-2017-6076 Local Information Disclosure Vulnerability
OSVDB: - CVE-2017-6076 - wolfSSL - Information Disclosure Issue

See also: 🔍

Entryinfo

Created: 02/24/2017 10:39
Updated: 08/16/2020 17:04
Changes: 02/24/2017 10:39 (63), 08/16/2020 17:04 (5)
Complete: 🔍
Cache ID: 216:676:103

Discussion

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