VDB-96867 · CVE-2016-8354 · BID 93830

Schneider Electric Unity Pro up to V11.0 Unity Project code injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Schneider Electric Unity Pro up to V11.0. Affected by this issue is some unknown functionality of the component Unity Project Handler. Performing a manipulation results in code injection. This vulnerability is reported as CVE-2016-8354. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Schneider Electric Unity Pro up to V11.0 (SCADA Software). This affects an unknown functionality of the component Unity Project Handler. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Schneider Electric Unity PRO prior to V11.1. Unity projects can be compiled as x86 instructions and loaded onto the PLC Simulator delivered with Unity PRO. These x86 instructions are subsequently executed directly by the simulator. A specially crafted patched Unity project file can make the simulator execute malicious code by redirecting the control flow of these instructions.

The bug was discovered 11/01/2016. The weakness was disclosed 02/13/2017 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2016-8354 since 09/28/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 T1059 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 104 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version V11.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93830†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Unity Pro V11.1

Timelineinfo

09/28/2016 🔍
10/14/2016 +16 days 🔍
11/01/2016 +18 days 🔍
02/13/2017 +104 days 🔍
02/13/2017 +0 days 🔍
02/14/2017 +1 days 🔍
02/14/2017 +0 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2016-8354 (🔍)
GCVE (CVE): GCVE-0-2016-8354
GCVE (VulDB): GCVE-100-96867
SecurityFocus: 93830 - Schneider Electric Unity PRO Insecure File Downloading Remote Code Execution Vulnerability
OSVDB: - CVE-2016-8354 - Schneider Electric - Unity PRO - Code Execution Issue

Entryinfo

Created: 02/14/2017 09:08
Changes: 02/14/2017 09:08 (65)
Complete: 🔍
Cache ID: 216::103

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

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