Auth bypass in Rockwell Automation 1756-Enbt, 1756-Eweb, 1768-Enbt, 1768-Eweb Communication Modules
CVE-2012-6437
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
Vulnerability class: Broken Authentication
EPSS: 0.097 (95.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
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)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2012-6437?
- CVE-2012-6437 is a critical-severity vulnerability in Rockwell Automation 1756-Enbt, 1756-Eweb, 1768-Enbt, 1768-Eweb Communication Modules, classified under Improper Authentication. CVSS score: 9.8/10. Published 2013-01-24.
- How severe is CVE-2012-6437?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2012-6437 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.