Advantech Modbus RTU OPC Server up to 3.01.9 ActiveX Control memory corruption

EntryHistoryDiffjsonxmlCTI

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.
9.5	$0-$5k	0.00

A vulnerability was found in Advantech Modbus RTU OPC Server up to 3.01.9. It has been declared as very critical. This vulnerability affects an unknown part of the component ActiveX Control. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in the Advantech ADAM OLE for Process Control (OPC) Server ActiveX control in ADAM OPC Server before 3.01.012, Modbus RTU OPC Server before 3.01.010, and Modbus TCP OPC Server before 3.01.010 allows remote attackers to execute arbitrary code via unspecified vectors.

The weakness was published 02/21/2012 (Website). The advisory is shared for download at us-cert.gov. This vulnerability was named CVE-2011-1914 since 05/09/2011. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/10/2017).

Upgrading to version 3.01.010 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (69529).

Productinfo

Vendor

Advantech

Name

Modbus RTU OPC Server

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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unlock	unlock	unlock	unlock	unlock	unlock
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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

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: 🔍

0-Day Time: 🔍

Upgrade: Modbus RTU OPC Server 3.01.010

Timelineinfo

05/09/2011 🔍
09/06/2011 +120 days 🔍
02/21/2012 +168 days 🔍
02/21/2012 +0 days 🔍
02/21/2012 +0 days 🔍
03/11/2012 +19 days 🔍
03/23/2015 +1107 days 🔍
04/10/2017 +749 days 🔍

Sourcesinfo

Vendor: advantech.com

Advisory: us-cert.gov
Status: Not defined

CVE: CVE-2011-1914 (🔍)
X-Force: 69529
Vulnerability Center: 34590 - Advantech ADAM OLE for Process Control (OPC) Server ActiveX Control Buffer Overflow Vulnerability, High
SecurityFocus: 49479 - Siemens SIMATIC WinCC Flexible Runtime Advanced Loader Heap Buffer Overflow Vulnerability

Entryinfo

Created: 03/23/2015 16:50
Updated: 04/10/2017 11:32
Changes: 03/23/2015 16:50 (50), 04/10/2017 11:32 (9)
Complete: 🔍