Details of VAR-201708-1510

ID

VAR-201708-1510

CVE

CVE-2017-6873

TITLE

Siemens OZW672 and OZW772 Cryptographic vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2017-006993

DESCRIPTION

A vulnerability was discovered in Siemens OZW672 (all versions) and OZW772 (all versions) that could allow an attacker to read and manipulate data in TLS sessions while performing a man-in-the-middle (MITM) attack on the integrated web server on port 443/tcp. Siemens OZW672 and OZW772 Contains a cryptographic vulnerability.Information may be obtained and information may be altered. Both Siemens OZW672 and OZW772 are building controller products from Siemens AG. There is a man-in-the-middle attack vulnerability in Siemens OZW672 and OZW772. Multiple Siemens OZW672 and OZW772 are prone to multiple authentication-bypass vulnerabilities. An attacker can exploit these issues to bypass the authentication mechanism and perform unauthorized actions. This may aid in further attacks

Trust: 2.79

sources: NVD: CVE-2017-6873 // JVNDB: JVNDB-2017-006993 // CNVD: CNVD-2017-12866 // BID: 99473 // IVD: b6aab7b7-cd78-4139-9b22-d94f00e179d1 // VULHUB: VHN-115076 // VULMON: CVE-2017-6873

IOT TAXONOMY

category:	['ICS', 'Network device']	sub_category:	-	Trust: 0.6
category:	['ICS']	sub_category:	-	Trust: 0.2

sources: IVD: b6aab7b7-cd78-4139-9b22-d94f00e179d1 // CNVD: CNVD-2017-12866

AFFECTED PRODUCTS

vendor:	siemens	model:	ozw672	scope:	eq	version:	-	Trust: 2.4
vendor:	siemens	model:	ozw772	scope:	eq	version:	-	Trust: 2.4
vendor:	siemens	model:	ozw772	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	ozw672	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	ozw772	scope:	eq	version:	0	Trust: 0.3
vendor:	siemens	model:	ozw672	scope:	eq	version:	0	Trust: 0.3
vendor:	ozw772	model:	-	scope:	eq	version:	-	Trust: 0.2
vendor:	ozw672	model:	-	scope:	eq	version:	-	Trust: 0.2

sources: IVD: b6aab7b7-cd78-4139-9b22-d94f00e179d1 // CNVD: CNVD-2017-12866 // BID: 99473 // JVNDB: JVNDB-2017-006993 // CNNVD: CNNVD-201703-624 // NVD: CVE-2017-6873

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2017-6873
value:	HIGH
Trust: 1.0
NVD:	CVE-2017-6873
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2017-12866
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-201703-624
value:	HIGH
Trust: 0.6
IVD:	b6aab7b7-cd78-4139-9b22-d94f00e179d1
value:	HIGH
Trust: 0.2
VULHUB:	VHN-115076
value:	MEDIUM
Trust: 0.1
VULMON:	CVE-2017-6873
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2017-6873
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:N/AC:M/AU:N/C:P/I:P/A:N
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	NONE
exploitabilityScore:	8.6
impactScore:	4.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9
CNVD:	CNVD-2017-12866
severity:	HIGH
baseScore:	7.6
vectorString:	AV:N/AC:H/AU:N/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	HIGH
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	4.9
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6
IVD:	b6aab7b7-cd78-4139-9b22-d94f00e179d1
severity:	HIGH
baseScore:	7.6
vectorString:	AV:N/AC:H/AU:N/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	HIGH
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	4.9
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.9 [IVD]
Trust: 0.2
VULHUB:	VHN-115076
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:N/AC:M/AU:N/C:P/I:P/A:N
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	NONE
exploitabilityScore:	8.6
impactScore:	4.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2017-6873
baseSeverity:	HIGH
baseScore:	7.4
vectorString:	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
attackVector:	NETWORK
attackComplexity:	HIGH
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	2.2
impactScore:	5.2
version:	3.0
Trust: 1.8

sources: IVD: b6aab7b7-cd78-4139-9b22-d94f00e179d1 // CNVD: CNVD-2017-12866 // VULHUB: VHN-115076 // VULMON: CVE-2017-6873 // JVNDB: JVNDB-2017-006993 // CNNVD: CNNVD-201703-624 // NVD: CVE-2017-6873

PROBLEMTYPE DATA

problemtype:	NVD-CWE-noinfo	Trust: 1.0
problemtype:	CWE-306	Trust: 1.0
problemtype:	CWE-310	Trust: 0.9

sources: VULHUB: VHN-115076 // JVNDB: JVNDB-2017-006993 // NVD: CVE-2017-6873

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201703-624

TYPE

encryption problem

Trust: 0.6

sources: CNNVD: CNNVD-201703-624

CONFIGURATIONS

sources: JVNDB: JVNDB-2017-006993

PATCH

title:	SSA-563539	url:	https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-563539.pdf	Trust: 0.8
title:	Patch for Siemens OZW672 and OZW772 man-in-the-middle attack vulnerabilities	url:	https://www.cnvd.org.cn/patchInfo/show/97345	Trust: 0.6

sources: CNVD: CNVD-2017-12866 // JVNDB: JVNDB-2017-006993

EXTERNAL IDS

db:	NVD	id:	CVE-2017-6873	Trust: 3.7
db:	SIEMENS	id:	SSA-563539	Trust: 2.7
db:	BID	id:	99473	Trust: 2.1
db:	ICS CERT	id:	ICSA-17-187-01	Trust: 1.2
db:	CNNVD	id:	CNNVD-201703-624	Trust: 0.9
db:	CNVD	id:	CNVD-2017-12866	Trust: 0.8
db:	JVNDB	id:	JVNDB-2017-006993	Trust: 0.8
db:	IVD	id:	B6AAB7B7-CD78-4139-9B22-D94F00E179D1	Trust: 0.2
db:	VULHUB	id:	VHN-115076	Trust: 0.1
db:	VULMON	id:	CVE-2017-6873	Trust: 0.1

sources: IVD: b6aab7b7-cd78-4139-9b22-d94f00e179d1 // CNVD: CNVD-2017-12866 // VULHUB: VHN-115076 // VULMON: CVE-2017-6873 // BID: 99473 // JVNDB: JVNDB-2017-006993 // CNNVD: CNNVD-201703-624 // NVD: CVE-2017-6873

REFERENCES

url:	https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-563539.pdf	Trust: 2.7
url:	http://www.securityfocus.com/bid/99473	Trust: 1.9
url:	https://ics-cert.us-cert.gov/advisories/icsa-17-187-01	Trust: 1.2
url:	http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-6873	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2017-6873	Trust: 0.8
url:	http://subscriber.communications.siemens.com/	Trust: 0.3
url:	https://cwe.mitre.org/data/definitions/.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2017-12866 // VULHUB: VHN-115076 // VULMON: CVE-2017-6873 // BID: 99473 // JVNDB: JVNDB-2017-006993 // CNNVD: CNNVD-201703-624 // NVD: CVE-2017-6873

CREDITS

Stefan Viehböck from SEC Consult.

Trust: 0.3

sources: BID: 99473

SOURCES

db:	IVD	id:	b6aab7b7-cd78-4139-9b22-d94f00e179d1
db:	CNVD	id:	CNVD-2017-12866
db:	VULHUB	id:	VHN-115076
db:	VULMON	id:	CVE-2017-6873
db:	BID	id:	99473
db:	JVNDB	id:	JVNDB-2017-006993
db:	CNNVD	id:	CNNVD-201703-624
db:	NVD	id:	CVE-2017-6873

LAST UPDATE DATE

2024-11-23T21:40:29.834000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2017-12866	date:	2017-07-05T00:00:00
db:	VULHUB	id:	VHN-115076	date:	2019-10-09T00:00:00
db:	VULMON	id:	CVE-2017-6873	date:	2019-10-09T00:00:00
db:	BID	id:	99473	date:	2017-07-06T00:00:00
db:	JVNDB	id:	JVNDB-2017-006993	date:	2017-09-07T00:00:00
db:	CNNVD	id:	CNNVD-201703-624	date:	2019-10-17T00:00:00
db:	NVD	id:	CVE-2017-6873	date:	2024-11-21T03:30:42.440

SOURCES RELEASE DATE

db:	IVD	id:	b6aab7b7-cd78-4139-9b22-d94f00e179d1	date:	2017-07-05T00:00:00
db:	CNVD	id:	CNVD-2017-12866	date:	2017-07-05T00:00:00
db:	VULHUB	id:	VHN-115076	date:	2017-08-08T00:00:00
db:	VULMON	id:	CVE-2017-6873	date:	2017-08-08T00:00:00
db:	BID	id:	99473	date:	2017-07-06T00:00:00
db:	JVNDB	id:	JVNDB-2017-006993	date:	2017-09-07T00:00:00
db:	CNNVD	id:	CNNVD-201703-624	date:	2017-03-16T00:00:00
db:	NVD	id:	CVE-2017-6873	date:	2017-08-08T00:29:00.320