CVE-2020-6998

The connection establishment algorithm found in Rockwell Automation CompactLogix 5370 and ControlLogix 5570 versions 33 and prior does not sufficiently manage its control flow during execution, creating an infinite loop. This may allow an attacker to send specially crafted CIP packet requests to a controller, which may cause denial-of-service conditions in communications with other products.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.8 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
icscertCNA
5.8 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 22%
VendorProductVersion
rockwellautomationarmor_compact_guardlogix_5370_firmware
𝑥
≤ 33
rockwellautomationcompact_guardlogix_5370_firmware
𝑥
≤ 33
rockwellautomationcompactlogix_5370_l1_firmware
𝑥
≤ 33
rockwellautomationcompactlogix_5370_l2_firmware
𝑥
≤ 33
rockwellautomationcompactlogix_5370_l3_firmware
𝑥
≤ 33
rockwellautomationcontrollogix_5570_firmware
𝑥
≤ 33
rockwellautomationguardlogix_5560_firmware
𝑥
≤ 33
rockwellautomationguardlogix_5570_firmware
𝑥
≤ 33
rockwellautomationguardlogix_5580_firmware
𝑥
≤ 33
𝑥
= Vulnerable software versions