Opcsystems Opcsystems.net 4.0 input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Opcsystems Opcsystems.net 4.0. The affected element is an unknown function. The manipulation leads to input validation. This vulnerability is referenced as CVE-2011-4871. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Opcsystems Opcsystems.net 4.0. It has been rated as problematic. This issue affects some unknown processing. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

Open Automation Software OPC Systems.NET before 5.0 allows remote attackers to cause a denial of service via a malformed .NET RPC packet on TCP port 58723.

The weakness was published 04/18/2012 (Website). The advisory is shared at us-cert.gov. The identification of this vulnerability is CVE-2011-4871 since 12/21/2011. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 4.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (74924), Exploit-DB (17965) and Vulnerability Center (SBV-36864†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Opcsystems.net 4.0

Timelineinfo

10/10/2011 🔍
12/21/2011 +72 days 🔍
04/18/2012 +119 days 🔍
04/18/2012 +0 days 🔍
10/29/2012 +194 days 🔍
03/23/2015 +875 days 🔍
03/19/2025 +3649 days 🔍

Sourcesinfo

Advisory: us-cert.gov
Status: Confirmed

CVE: CVE-2011-4871 (🔍)
GCVE (CVE): GCVE-0-2011-4871
GCVE (VulDB): GCVE-100-60605
X-Force: 74924
Vulnerability Center: 36864 - OPC Systems.NET Before 5.0 Remote DoS Vulnerability via a Crafted .NET RPC Packet on TCP Port 58723, High

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/23/2015 16:50
Updated: 03/19/2025 16:54
Changes: 03/23/2015 16:50 (53), 04/20/2017 13:46 (1), 03/19/2025 16:54 (27)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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