CVE-2012-6438
An attacker can send a malformed CIP packet to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP, which creates a buffer overflow and causes the NIC to crash.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 27.4%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
The device does not properly validate the data being sent to the buffer. An attacker can send a malformed CIP packet to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP, which creates a buffer overflow and causes the NIC to crash. Successful exploitation of this vulnerability could cause loss of availability 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
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 27.37% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- rockwellautomation/controllogix controllers · rockwellautomation/guardlogix controllers · rockwellautomation/micrologix · rockwellautomation/softlogix controllers · rockwellautomation/1756-enbt · rockwellautomation/1756-eweb · rockwellautomation/1768-enbt · rockwellautomation/1768-eweb · rockwellautomation/1794-aentr flex i\/o ethernet\/ip adapter · rockwellautomation/compactlogix · rockwellautomation/compactlogix controllers · rockwellautomation/compactlogix l32e controller · rockwellautomation/compactlogix l35e controller · rockwellautomation/controllogix · rockwellautomation/flexlogix 1788-enbt adapter · rockwellautomation/guardlogix · rockwellautomation/softlogix
- Source
- ics-cert@hq.dhs.gov
References
- http://rockwellautomation.custhelp.com/app/answers/detail/a_id/54102
- https://rockwellautomation.custhelp.com/app/answers/detail/a_id/470154
- https://rockwellautomation.custhelp.com/app/answers/detail/aid/470155
- https://rockwellautomation.custhelp.com/app/answers/detail/aid/470156
- https://www.cisa.gov/news-events/ics-advisories/icsa-13-011-03
- http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdfUS Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.