VDB-80725 · CVE-2015-7923 · OpenVAS 103368

Westermo WeOS up to 4.18.x SSL Private Key cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Westermo WeOS up to 4.18.x. The impacted element is an unknown function of the component SSL Private Key. This manipulation causes cryptographic issue. This vulnerability is registered as CVE-2015-7923. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Westermo WeOS up to 4.18.x and classified as critical. Affected by this vulnerability is an unknown functionality of the component SSL Private Key. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Westermo WeOS before 4.19.0 uses the same SSL private key across different customers' installations, which makes it easier for man-in-the-middle attackers to defeat cryptographic protection mechanisms by leveraging knowledge of a key.

The weakness was published 01/30/2016 (Website). The advisory is shared at ics-cert.us-cert.gov. This vulnerability is known as CVE-2015-7923 since 10/22/2015. 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 T1600 for this issue.

Upgrading to version 4.19.0 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.0
VulDB Temp Score: 8.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.0
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: Cryptographic issue
CWE: CWE-310
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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OpenVAS ID: 103368
OpenVAS Name: Westermo WeOS Hard-coded Certificate Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WeOS 4.19.0

Timelineinfo

10/22/2015 🔍
01/30/2016 +100 days 🔍
01/30/2016 +0 days 🔍
02/01/2016 +2 days 🔍
07/11/2018 +891 days 🔍

Sourcesinfo

Advisory: ics-cert.us-cert.gov
Status: Not defined

CVE: CVE-2015-7923 (🔍)
GCVE (CVE): GCVE-0-2015-7923
GCVE (VulDB): GCVE-100-80725

Entryinfo

Created: 02/01/2016 10:40
Updated: 07/11/2018 04:09
Changes: 02/01/2016 10:40 (51), 07/11/2018 04:09 (11)
Complete: 🔍
Cache ID: 216::103

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