cbcvebase.
CVE-2018-14829
published 2018-09-20

CVE-2018-14829: Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. This vulnerability may allow a remote threat actor to intentionally send a malformed CIP packet…

PriorityP267critical9.8CVSS 3.0
AVNACLPRNUINSUCHIHAH
EPSS
16.09%
96.5th percentile
Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. This vulnerability may allow a remote threat actor to intentionally send a malformed CIP packet to Port 44818, causing the software application to stop responding and crash. This vulnerability also has the potential to exploit a buffer overflow condition, which may allow the threat actor to remotely execute arbitrary code.

Affected

2 ranges
VendorProductVersion rangeFixed in
rockwell_automationrslinx_classic
rockwellautomationrslinx<= 4.00.01

Detection & IOCsextracted from sources · hover to see the quote

port44818
processRSLINX.exe
  • Monitor for malformed CIP packets sent to TCP/UDP port 44818 targeting RSLINX.exe; anomalous CIP length field values that do not match received network data bytes are indicative of exploitation attempts.
  • Alert on unauthenticated inbound EtherNet/IP traffic to port 44818 from external or untrusted network segments, particularly specially crafted packets that cause RSLINX.exe to crash or stop responding.
  • ·No known public exploits specifically target these vulnerabilities at time of advisory publication.
  • ·Port 44818 can be disabled in RSLinx Classic if not required for operations, which serves as a compensating control.
  • ·The vulnerability is exploitable remotely with low skill level required and requires no authentication, raising urgency for network-level controls.

CVSS provenance

nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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