CVE-2012-6441
Rockwell Automation ControlLogix PLC Information Exposure
Exploitation likely. EPSS gives it a 57% chance of exploitation in the next 30 days. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
An information exposure of confidential information results when the device receives a specially crafted CIP packet to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP. Successful exploitation of this vulnerability could cause loss of confidentiality. 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
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
57% chance of exploitation activity in the next 30 days, which ranks it in the 99th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
12 events over 4963 days, from the signal feeds we watch.
- EPSS band changemoderate → highepss band change
- EPSS band changehigh → moderate
- EPSS band changehigh → moderateepss band change
- EPSS band changelow → high
- Patch availableworkaround available, record updated
- Publishedweakness classified, att&ck mapped
Affected products
- 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modulesICS / OT / IoT
- CompactLogix L32E and L35E controllersICS / OT / IoT
- 1788-ENBT FLEXLogix adapterICS / OT / IoT
- 1794-AENTR FLEX I/O EtherNet/IP adapterICS / OT / IoT
- ControlLogix, CompactLogix, GuardLogix, and SoftLogixICS / OT / IoT
- CompactLogix and SoftLogix controllersICS / OT / IoT
- ControlLogix and GuardLogix controllersICS / OT / IoT
- MicroLogixICS / OT / IoT
And 9 more affected products. See all after sign-in
Technical detail
CVSS 2.0 vector
Open in the CVSS calculatorAV:N/AC:L/Au:N/C:P/I:N/A:N
Scored 5.0 by NVD.
How it is reached
- Access Vector NetworkExploitable remotely over the network
- Access Complexity LowNo special conditions required
- Authentication NoneNo authentication required
Impact if exploited
- Confidentiality PartialSome information is disclosed
- Integrity NoneNo integrity impact
- Availability NoneNo availability impact
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
Watch the software you run.
My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.
We'll flag the next CVE, public exploit or patch for Controllogix Controllers, not every advisory.
A free account adds
- The full version matrix and every affected product
- Exploit links, proofs of concept and Metasploit modules
- Email alerts for the products you watch
- The same data over REST API, MCP and CLI