VDB-91913 · CVE-2016-5793 · BID 93046

Moxa Active OPC Server up to 2.4.18 unquoted search path

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

A vulnerability was found in Moxa Active OPC Server up to 2.4.18 (Automation Software) and classified as critical. This issue affects an unknown part. The manipulation with an unknown input leads to a unquoted search path vulnerability. Using CWE to declare the problem leads to CWE-428. The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Unquoted Windows search path vulnerability in Moxa Active OPC Server before 2.4.19 allows local users to gain privileges via a Trojan horse executable file in the %SYSTEMDRIVE% directory.

The weakness was presented 09/24/2016 (Website). The advisory is shared at ics-cert.us-cert.gov. The identification of this vulnerability is CVE-2016-5793 since 06/23/2016. The exploitation is known to be easy. An attack has to be approached locally. A simple authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1574.009 for this issue.

Upgrading to version 2.4.19 eliminates this vulnerability.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Unquoted search path
CWE: CWE-428 / CWE-426
ATT&CK: T1574.009

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 880988
OpenVAS Name: ereg_replace( string:path_name, pattern:\s+(/|\-|\-\-).*, replace:
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Active OPC Server 2.4.19

Timelineinfo

06/23/2016 🔍
09/20/2016 +89 days 🔍
09/24/2016 +4 days 🔍
09/24/2016 +0 days 🔍
09/25/2016 +1 days 🔍
04/24/2019 +941 days 🔍

Sourcesinfo

Vendor: moxa.com

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

CVE: CVE-2016-5793 (🔍)
SecurityFocus: 93046 - Moxa Active OPC Server CVE-2016-5793 Local Path Enumeration Vulnerability

Entryinfo

Created: 09/25/2016 10:01
Updated: 04/24/2019 14:45
Changes: 09/25/2016 10:01 (53), 04/24/2019 14:45 (12)
Complete: 🔍

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