Medium severity · published Aug 13, 2020
CVE-2020-14483
A timeout during a TLS handshake can result in the connection failing to terminate
4.3
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NI
Niagara · Tridium
4.6.96.28; 4.7.109.20; 4.7.110.32; 4.8.0.110 · source: NVD
NE
Niagara Enterprise Security · Tridium
2.4.31; 2.4.45; 4.8.0.35 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14483
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-14483
Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-224-03
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