Summary
SIMATIC CP 1543-1 and CP 1545-1 devices are affected by multiple vulnerabilities in ProFTPD, a third party component, that could allow a remote attacker to access sensitive information and execute arbitrary code.
Siemens has released updates for the affected products and recommends to update to the latest versions.
Vulnerabilities 2
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Unscored —
ProFTPD 1.3.7 has an out-of-bounds (OOB) read vulnerability in mod_cap via the cap_text.c cap_to_text function.
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Unscored —
In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a …
Revision history
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#2
Added fix for SIMATIC CP 1545-1
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#1
Publication Date
References
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SSA-679335: Multiple Vulnerabilities in Embedded FTP Server of SIMATIC CP Modules - TXT Version
https://cert-portal.siemens.com/productcert/txt/ssa-679335.txt
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SSA-679335: Multiple Vulnerabilities in Embedded FTP Server of SIMATIC CP Modules - PDF Version
https://cert-portal.siemens.com/productcert/pdf/ssa-679335.pdf
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ICS Advisory ICSA-21-222-07 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-21-222-07
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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