Summary
SIMATIC TIM 1531 IRC devices are vulnerable to multiple vulnerabilities in the third party component libcurl that could allow an attacker to extract sensitive information and pass a revoked certificate as valid.
Siemens has released an update for SIMATIC TIM 1531 IRC and recommends to update to the latest versions.
Vulnerabilities 2
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Unscored —
curl 7.62.0 through 7.70.0 is vulnerable to an information disclosure vulnerability that can lead to a partial password…
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Unscored —
curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verificati…
Revision history
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#2
Revision - Fixing typos
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#1
Publication Date
References
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SSA-200951: Multiple Vulnerabilities in Third-Party Component libcurl of TIM Devices - TXT Version
https://cert-portal.siemens.com/productcert/txt/ssa-200951.txt
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SSA-200951: Multiple Vulnerabilities in Third-Party Component libcurl of TIM Devices - PDF Version
https://cert-portal.siemens.com/productcert/pdf/ssa-200951.pdf
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ICS Advisory ICSA-21-159-10 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-21-159-10
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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