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ID

VAR-202109-1918


CVE

CVE-2021-37206


TITLE

Input validation vulnerability in multiple Siemens products

Trust: 0.8

sources: JVNDB: JVNDB-2021-012337

DESCRIPTION

A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP100 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP300 (All versions < V8.80). Received webpackets are not properly processed. An unauthenticated remote attacker with access to any of the Ethernet interfaces could send specially crafted packets to force a restart of the target device. Siemens SIPROTEC 5 is a multifunctional relay manufactured by Siemens, Germany. Siemens SIPROTEC 5 has an input validation error vulnerability, which stems from the failure of the received webpackets to be processed correctly. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements

Trust: 2.79

sources: NVD: CVE-2021-37206 // JVNDB: JVNDB-2021-012337 // CNVD: CNVD-2021-71428 // CNNVD: CNNVD-202104-975 // VULMON: CVE-2021-37206

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-71428

AFFECTED PRODUCTS

vendor:siemensmodel:siprotec 5 with cpu variant cp100scope:ltversion:8.80

Trust: 1.0

vendor:siemensmodel:siprotec 5 with cpu variant cp050scope:ltversion:8.80

Trust: 1.0

vendor:siemensmodel:siprotec 5 with cpu variant cp300scope:ltversion:8.80

Trust: 1.0

vendor:シーメンスmodel:siprotec 5 relays with cpu variants cp050scope: - version: -

Trust: 0.8

vendor:シーメンスmodel:siprotec 5 relays with cpu variants cp100scope: - version: -

Trust: 0.8

vendor:シーメンスmodel:siprotec 5 relays with cpu variants cp300scope:eqversion:8.80

Trust: 0.8

vendor:siemensmodel:siprotec relays with cpu variants cp300scope:eqversion:5<v8.80

Trust: 0.6

vendor:siemensmodel:siprotec relays with cpu variants cp200scope:eqversion:5

Trust: 0.6

vendor:siemensmodel:siprotec relays with cpu variants cp100scope:eqversion:5<v8.80

Trust: 0.6

vendor:siemensmodel:siprotec relays with cpu variants cp050scope:eqversion:5<v8.80

Trust: 0.6

sources: CNVD: CNVD-2021-71428 // JVNDB: JVNDB-2021-012337 // NVD: CVE-2021-37206

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-37206
value: HIGH

Trust: 1.0

NVD: CVE-2021-37206
value: HIGH

Trust: 0.8

CNVD: CNVD-2021-71428
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202104-975
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202109-921
value: HIGH

Trust: 0.6

VULMON: CVE-2021-37206
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-37206
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2021-71428
severity: HIGH
baseScore: 7.8
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 10.0
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-37206
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-37206
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2021-71428 // VULMON: CVE-2021-37206 // JVNDB: JVNDB-2021-012337 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202109-921 // NVD: CVE-2021-37206

PROBLEMTYPE DATA

problemtype:CWE-20

Trust: 1.0

problemtype:Inappropriate input confirmation (CWE-20) [ others ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-012337 // NVD: CVE-2021-37206

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202109-921

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202104-975

PATCH

title:SSA-500748url:https://cert-portal.siemens.com/productcert/pdf/ssa-500748.pdf

Trust: 0.8

title:Patch for Siemens SIPROTEC 5 improper input verification vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/290906

Trust: 0.6

title:Siemens SIPROTEC 5 Enter the fix for the verification error vulnerabilityurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=162456

Trust: 0.6

title:Siemens Security Advisories: Siemens Security Advisoryurl:https://vulmon.com/vendoradvisory?qidtp=siemens_security_advisories&qid=65a8fae950a3f91208b8371c95efa0da

Trust: 0.1

sources: CNVD: CNVD-2021-71428 // VULMON: CVE-2021-37206 // JVNDB: JVNDB-2021-012337 // CNNVD: CNNVD-202109-921

EXTERNAL IDS

db:NVDid:CVE-2021-37206

Trust: 3.9

db:SIEMENSid:SSA-500748

Trust: 2.3

db:ICS CERTid:ICSA-21-257-16

Trust: 1.4

db:JVNid:JVNVU96712416

Trust: 0.8

db:JVNDBid:JVNDB-2021-012337

Trust: 0.8

db:CNVDid:CNVD-2021-71428

Trust: 0.6

db:CS-HELPid:SB2021041363

Trust: 0.6

db:CNNVDid:CNNVD-202104-975

Trust: 0.6

db:CS-HELPid:SB2021091519

Trust: 0.6

db:CNNVDid:CNNVD-202109-921

Trust: 0.6

db:VULMONid:CVE-2021-37206

Trust: 0.1

sources: CNVD: CNVD-2021-71428 // VULMON: CVE-2021-37206 // JVNDB: JVNDB-2021-012337 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202109-921 // NVD: CVE-2021-37206

REFERENCES

url:https://cert-portal.siemens.com/productcert/pdf/ssa-500748.pdf

Trust: 2.3

url:https://jvn.jp/vu/jvnvu96712416/

Trust: 0.8

url:https://nvd.nist.gov/vuln/detail/cve-2021-37206

Trust: 0.8

url:https://www.cisa.gov/uscert/ics/advisories/icsa-21-257-16

Trust: 0.8

url:https://www.cybersecurity-help.cz/vdb/sb2021041363

Trust: 0.6

url:https://us-cert.cisa.gov/ics/advisories/icsa-21-257-16

Trust: 0.6

url:https://www.cybersecurity-help.cz/vdb/sb2021091519

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/20.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

url:https://cert-portal.siemens.com/productcert/txt/ssa-500748.txt

Trust: 0.1

sources: CNVD: CNVD-2021-71428 // VULMON: CVE-2021-37206 // JVNDB: JVNDB-2021-012337 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202109-921 // NVD: CVE-2021-37206

CREDITS

Yuriy Strela from GAI NetConsult GmbH reported this vulnerability to Siemens.

Trust: 0.6

sources: CNNVD: CNNVD-202109-921

SOURCES

db:CNVDid:CNVD-2021-71428
db:VULMONid:CVE-2021-37206
db:JVNDBid:JVNDB-2021-012337
db:CNNVDid:CNNVD-202104-975
db:CNNVDid:CNNVD-202109-921
db:NVDid:CVE-2021-37206

LAST UPDATE DATE

2024-08-14T12:50:49.854000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2021-71428date:2022-01-18T00:00:00
db:VULMONid:CVE-2021-37206date:2021-09-28T00:00:00
db:JVNDBid:JVNDB-2021-012337date:2022-08-30T02:02:00
db:CNNVDid:CNNVD-202104-975date:2021-04-14T00:00:00
db:CNNVDid:CNNVD-202109-921date:2021-10-13T00:00:00
db:NVDid:CVE-2021-37206date:2021-12-14T20:30:57.450

SOURCES RELEASE DATE

db:CNVDid:CNVD-2021-71428date:2021-09-15T00:00:00
db:VULMONid:CVE-2021-37206date:2021-09-14T00:00:00
db:JVNDBid:JVNDB-2021-012337date:2022-08-30T00:00:00
db:CNNVDid:CNNVD-202104-975date:2021-04-13T00:00:00
db:CNNVDid:CNNVD-202109-921date:2021-09-14T00:00:00
db:NVDid:CVE-2021-37206date:2021-09-14T11:15:26.547