Vulnerability in Rockwell Automation 1756-Enbt, 1756-Eweb, 1768-Enbt, 1768-Eweb Communication Modules
CVE-2012-6435
When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP that instructs the CPU to stop logic execution and enter a fault state, a DoS can occur. This situation could cause loss of availability and a disruption of communication 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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.335 (98.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.335 · newest: 0.335 · change: 0.000
Affected products
- Rockwell Automation 1756-Enbt, 1756-Eweb, 1768-Enbt, 1768-Eweb Communication Modules — versions All
- Rockwell Automation 1788-Enbt Flexlogix Adapter — versions All
- Rockwell Automation 1794-Aentr Flex I/o Ethernet/ip Adapter — versions All
- Rockwell Automation Compactlogix And Softlogix Controllers — versions 0
- Rockwell Automation Compactlogix L32e And L35e Controllers — versions All
- Rockwell Automation Controllogix And Guardlogix Controllers — versions 0
- Rockwell Automation Controllogix, Compactlogix, Guardlogix, And Softlogix — versions 0
- Rockwell Automation Micrologix — versions 1400, 1100
- Rockwellautomation 1756-Enbt
- Rockwellautomation 1756-Eweb
Weakness classification (CWE)
References
- www.cisa.gov/news-events/ics-advisories/icsa-13-011-03
- rockwellautomation.custhelp.com/app/answers/detail/a_id/470154
- rockwellautomation.custhelp.com/app/answers/detail/aid/470155
- rockwellautomation.custhelp.com/app/answers/detail/aid/470156
- rockwellautomation.custhelp.com/app/answers/detail/a_id/54102
- af854a3a-2127-422b-91ae-364da2661108 (US Government Resource)
Frequently asked questions
- What is CVE-2012-6435?
- CVE-2012-6435 is a high-severity vulnerability in Rockwell Automation 1756-Enbt, 1756-Eweb, 1768-Enbt, 1768-Eweb Communication Modules, classified under Improper Access Control. CVSS score: 7.5/10. Published 2013-01-24.
- How severe is CVE-2012-6435?
- High severity. CVSS v3 base score is 7.5 out of 10.