CVE-2020-14483
lowpriority · track · 17EPSS 0.004 · 36 %ileDEEUUSEPSS · scored 2026-10-27
A timeout during a TLS handshake can result in the connection failing to terminate. This can result in a Niagara thread hanging and requires a manual restart of Niagara (Versions 4.6.96.28, 4.7.109.20, 4.7.110.32, 4.8.0.110) and Niagara Enterprise Security (Versions 2.4.31, 2.4.45, 4.8.0.35) to correct.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedphoenix_contact_psirt
This vulnerability will be fixed in the regular firmware release (v.1.4.0) which is expected to be available October 2020.
- FixedNiagaracisa_csaf_ot
Niagara Enterprise Security 4.9.0.60
- FixedNiagara Enterprise Securitycisa_csaf_ot
Niagara Enterprise Security 4.9.0.60
- Mitigationphoenix_contact_psirt
Phoenix Contact recommends customers with affected products take the following steps to protect themselves: • Review and validate the list of users who are authorized and who can authenticate to Emalytics. • Allow only trained and trusted persons to have physical access to the system, including devices that have connection to the system though the Ethernet port. Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note: Art.-Nr. 107913: AH EN INDUSTRIAL SECURITY 'Measures to protect network-capable devices with Ethernet connection against unauthorized access' external link
- MitigationNiagaracisa_csaf_ot
Allow only trained and trusted persons to have physical access to the system, including devices with connection to the system though the Ethernet port.
- MitigationNiagara Enterprise Securitycisa_csaf_ot
Allow only trained and trusted persons to have physical access to the system, including devices with connection to the system though the Ethernet port.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.3–4.3
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (18)
Products and version ranges known to be affected.
- n/a Niagara≤ Niagara: Versions 4.6.96.28, 4.7.109.20, 4.7.110.32, 4.8.0.110 and Niagara Enterprise Security: Versions 2.4.31, 2.4.45, 4.8.0.35enisa_euvdEU
- tridium niagara enterprise security= 2.4.31nvdUScpe:2.3:a:tridium:niagara_enterprise_security:*:*:*:*:*:*:*:*
- tridium niagara enterprise security= 2.4.45nvdUScpe:2.3:a:tridium:niagara_enterprise_security:*:*:*:*:*:*:*:*
- tridium niagara enterprise security= 4.8.0.35nvdUScpe:2.3:a:tridium:niagara_enterprise_security:*:*:*:*:*:*:*:*
advisories (2)
Vendor and ecosystem advisories describing this.
- VDE-2020-026PHOENIX CONTACT: Denial-of-Service vulnerabilty in Emalytics, ILC 2050 BI and ILC 2050 BI-L2020-08-20csaf · phoenix_contact_psirtDE
A timeout during a TLS handshake can result in the connection failing to terminate. This can result in a Niagara thread hanging and requires a manual restart to correct.
- ICSA-20-224-03Tridium Niagara2020-08-11icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could result in a denial-of-service condition.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2020-14483cnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-20-224-03cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.2762/cnnvd
- https://www.tridium.com/~/media/tridium/library/documents/sb2020-tridium-2.ashx?la=enPatchcnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-20-224-03enisa_euvd
- https://us-cert.cisa.gov/ics/advisories/icsa-20-224-03Third Party AdvisoryUS Government Resourcenvd
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