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CVE-2012-6437— Rockwell Automation ControlLogix PLC Improper Authentication

Quick assessment

Affected
Rockwell Automation 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rockwell Automation ControlLogix提供工业自动化控制和信息产品。 Rockwell Automation ControlLogix中存在安全绕过漏洞。攻击者利用该漏洞绕过身份验证进程，上传新的固件映像到以太网卡。

AI Predicted 9.8 Difficulty: Easy EPSS 7.85% · P95
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I. Basic Information for CVE-2012-6437

Vulnerability Information
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Vulnerability Title
Rockwell Automation ControlLogix PLC Improper Authentication
Source: CVE Program / CVE List V5
Vulnerability Description
The device does not properly authenticate users and the potential exists for a remote user to upload a new firmware image to the Ethernet card, whether it is a corrupt or legitimate firmware image. Successful exploitation of this vulnerability could cause loss of availability, integrity, and confidentiality and a disruption in communications with other connected devices. Rockwell Automation EtherNet/IP products; 1756-ENBT, 1756-EWEB, 1768-ENBT, and 1768-EWEB communication modules; CompactLogix L32E and L35E controllers; 1788-ENBT FLEXLogix adapter; 1794-AENTR FLEX I/O EtherNet/IP adapter; ControlLogix 18 and earlier; CompactLogix 18 and earlier; GuardLogix 18 and earlier; SoftLogix 18 and earlier; CompactLogix controllers 19 and earlier; SoftLogix controllers 19 and earlier; ControlLogix controllers 20 and earlier; GuardLogix controllers 20 and earlier; and MicroLogix 1100 and 1400
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Rockwell Automation ControlLogix 安全绕过漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rockwell Automation ControlLogix提供工业自动化控制和信息产品。 Rockwell Automation ControlLogix中存在安全绕过漏洞。攻击者利用该漏洞绕过身份验证进程，上传新的固件映像到以太网卡。
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
Rockwell Automation 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules All -
Rockwell Automation CompactLogix L32E and L35E controllers All -
Rockwell Automation 1788-ENBT FLEXLogix adapter All -
Rockwell Automation 1794-AENTR FLEX I/O EtherNet/IP adapter All -
Rockwell Automation ControlLogix, CompactLogix, GuardLogix, and SoftLogix 0 ~ 18 -
Rockwell Automation CompactLogix and SoftLogix controllers 0 ~ 19 -
Rockwell Automation ControlLogix and GuardLogix controllers 0 ~ 20 -
Rockwell Automation MicroLogix 1100 -

II. Public POCs for CVE-2012-6437

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III. Intelligence Information for CVE-2012-6437

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Vendor Advisories for CVE-2012-6437 (1)

Other References for CVE-2012-6437 (4)

Same Patch Batch · Rockwell Automation · 2013-01-24 · 8 CVEs total

CVE-2012-6435 Rockwell Automation ControlLogix PLC Improper Access Control
CVE-2012-6436 Rockwell Automation ControlLogix PLC Improper Input Validation
CVE-2012-6438 Rockwell Automation ControlLogix PLC Improper Input Validation
CVE-2012-6439 Rockwell Automation ControlLogix PLC Improper Access Control
CVE-2012-6440 Rockwell Automation ControlLogix PLC Improper Input Validation
CVE-2012-6441 Rockwell Automation ControlLogix PLC Information Exposure
CVE-2012-6442 Rockwell Automation ControlLogix PLC Improper Access Control

IV. Related Vulnerabilities

Same product: 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules
Same vendor: Rockwell Automation
Same weakness: CWE-287

V. Comments for CVE-2012-6437

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