MatrixSSL up to 3.8.2 RSA information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in MatrixSSL up to 3.8.2. This vulnerability affects unknown code of the component RSA. This manipulation causes information disclosure. This vulnerability is tracked as CVE-2016-6883. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in MatrixSSL up to 3.8.2. Affected by this vulnerability is an unknown code of the component RSA. The manipulation with an unknown input leads to a information disclosure vulnerability. 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:

MatrixSSL before 3.8.3 configured with RSA Cipher Suites allows remote attackers to obtain sensitive information via a Bleichenbacher variant attack.

The bug was discovered 03/03/2017. The weakness was disclosed 03/03/2017 by Juraj Somorovsky (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2016-6883 since 08/19/2016. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 105415 (Return Of Bleichenbacher's Oracle Threat (ROBOT) Information Disclosure), which helps to determine the existence of the flaw in a target environment. It is assigned to the family General and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38695 (TLS ROBOT Vulnerability Detected).

Upgrading to version 3.8.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (105415) and SecurityFocus (BID 91488†). The entries VDB-97506, VDB-97508, VDB-110567 and VDB-110568 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105415
Nessus Name: Return Of Bleichenbacher's Oracle Threat (ROBOT) Information Disclosure
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103427
OpenVAS Name: MatrixSSL Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MatrixSSL 3.8.3

Timelineinfo

06/26/2016 🔍
08/19/2016 +54 days 🔍
03/03/2017 +196 days 🔍
03/03/2017 +0 days 🔍
03/03/2017 +0 days 🔍
03/04/2017 +1 days 🔍
11/08/2019 +979 days 🔍
09/03/2020 +300 days 🔍

Sourcesinfo

Product: github.com

Advisory: openwall.com
Researcher: Juraj Somorovsky
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6883 (🔍)
GCVE (CVE): GCVE-0-2016-6883
GCVE (VulDB): GCVE-100-97507
SecurityFocus: 91488 - MatrixSSL Multiple Information Disclosure Vulnerabilities
OSVDB: - CVE-2016-6883 - MatrixSSL - Bleichenbacher Variant Issue

See also: 🔍

Entryinfo

Created: 03/04/2017 13:52
Updated: 09/03/2020 18:18
Changes: 03/04/2017 13:52 (74), 09/03/2020 18:18 (5)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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