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CVE-2014-0777— OServer Out of Bounds Read

Quick assessment

Affected
IOServer OPC Drivers
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IOServer OPC Server是澳大利亚IOServer公司的一款基于Windows平台的工控自动化控制服务器。 IOServer OPC Server的OPC Drivers 1.0.20及之前版本的Modbus slave/outstation驱动程序存在安全漏洞。远程攻击者可通过特制的数据包利用该漏洞造成拒绝服务（越边界读取和守护进程崩溃）。

AI Predicted 7.5 Difficulty: Easy EPSS 2.40% · P83
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I. Basic Information for CVE-2014-0777

Vulnerability Information
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Vulnerability Title
OServer Out of Bounds Read
Source: CVE Program / CVE List V5
Vulnerability Description
The Modbus slave/outstation driver in the OPC Drivers 1.0.20 and earlier in IOServer OPC Server allows remote attackers to cause a denial of service (out-of-bounds read and daemon crash) via a crafted packet.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
IOServer OPC Server OPC Drivers 缓冲区溢出漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IOServer OPC Server是澳大利亚IOServer公司的一款基于Windows平台的工控自动化控制服务器。 IOServer OPC Server的OPC Drivers 1.0.20及之前版本的Modbus slave/outstation驱动程序存在安全漏洞。远程攻击者可通过特制的数据包利用该漏洞造成拒绝服务（越边界读取和守护进程崩溃）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
IOServer OPC Drivers 0 ~ 1.0.20 -

II. Public POCs for CVE-2014-0777

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III. Intelligence Information for CVE-2014-0777

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Other References for CVE-2014-0777 (1)

IV. Related Vulnerabilities

Same weakness: CWE-125

V. Comments for CVE-2014-0777

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