An issue was discovered in tcp_rcv() in nptcp.c in HCC embedded InterNiche 4.0.1. The TCP header processing code doesn't sanitize the value of the IP total length field (header length + data length). With a crafted IP packet, an integer overflow occurs whenever the value of the IP data length is calculated by subtracting the length of the header from the total length of the IP packet.
References
| Link | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf | Mitigation Third Party Advisory |
| https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ | Mitigation Third Party Advisory |
| https://www.kb.cert.org/vuls/id/608209 | Third Party Advisory US Government Resource |
| https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf | Mitigation Third Party Advisory |
| https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ | Mitigation Third Party Advisory |
| https://www.kb.cert.org/vuls/id/608209 | Third Party Advisory US Government Resource |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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History
21 Nov 2024, 06:05
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf - Mitigation, Third Party Advisory | |
| References | () https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ - Mitigation, Third Party Advisory | |
| References | () https://www.kb.cert.org/vuls/id/608209 - Third Party Advisory, US Government Resource |
Information
Published : 2021-08-19 12:15
Updated : 2024-11-21 06:05
NVD link : CVE-2021-31401
Mitre link : CVE-2021-31401
CVE.ORG link : CVE-2021-31401
JSON object : View
Products Affected
siemens
- sentron_3wl_com35_firmware
- sentron_3wa_com190_firmware
- sentron_3wl_com35
- sentron_3wa_com190
hcc-embedded
- nichestack
CWE
CWE-20
Improper Input Validation