CVE-2021-25662

Summary

A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7&#34; & 15&#34; (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Outdoor Panels V16 7&#34; & 15&#34; (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI Comfort Panels V15 4&#34; - 22&#34; (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Panels V16 4&#34; - 22&#34; (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels V15 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Update 6), SIMATIC HMI KTP Mobile Panels V16 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V16 Update 4), SIMATIC WinCC Runtime Advanced V15 (All versions < V15.1 Update 6), SIMATIC WinCC Runtime Advanced V16 (All versions < V16 Update 4). SmartVNC client fails to handle an exception properly if the program execution process is modified after sending a packet from the server, which could result in a Denial-of-Service condition.

Affected Software

Weaknesses

• CWE-755: CWE-755: Improper Handling of Exceptional Conditions

ADP Enrichment

CVE Program Container

Additional References

• https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12

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