Summary
The latest update for TIM 1531 IRC fixes a vulnerability that could allow a remote attacker to cause a denial-of-service under certain circumstances.
Siemens has released an update for the TIM 1531 IRC and recommends to update to the latest version.
Vulnerabilities 1
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Unscored —CVE-2018-0732 EPSS 47%
Client DoS due to large DH parameter
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a …
Revision history
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#2
Revision - Fixing typos
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#1
Publication Date
References
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SSA-419820: Denial-of-Service Vulnerability in TIM 1531 IRC - TXT Version
https://cert-portal.siemens.com/productcert/txt/ssa-419820.txt
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SSA-419820: Denial-of-Service Vulnerability in TIM 1531 IRC - PDF Version
https://cert-portal.siemens.com/productcert/pdf/ssa-419820.pdf
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ICS Advisory ICSA-21-159-08 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-21-159-08
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Recommended Practices
https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
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Recommended Practices
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
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Recommended Practices
https://www.cisa.gov/topics/industrial-control-systems
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Recommended Practices
https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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Recommended Practices
https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
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Recommended Practices
https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B