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ID

VAR-202010-1053


CVE

CVE-2020-3596


TITLE

Cisco Expressway  Series and  Cisco TelePresence Video Communication Server  Vulnerability in always improper control flow implementation

Trust: 0.8

sources: JVNDB: JVNDB-2020-012241

DESCRIPTION

A vulnerability in the Session Initiation Protocol (SIP) of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect handling of incoming SIP traffic. An attacker could exploit this vulnerability by sending a series of SIP packets to an affected device. A successful exploit could allow the attacker to exhaust memory on an affected device, causing it to crash and leading to a DoS condition. Cisco Expressway Series is an advanced collaboration gateway for unified communications

Trust: 2.25

sources: NVD: CVE-2020-3596 // JVNDB: JVNDB-2020-012241 // CNVD: CNVD-2020-57574 // VULHUB: VHN-181721

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2020-57574

AFFECTED PRODUCTS

vendor:ciscomodel:telepresence video communication serverscope:lteversion:x12.6.3

Trust: 1.0

vendor:ciscomodel:expresswayscope:lteversion:x12.6.3

Trust: 1.0

vendor:シスコシステムズmodel:cisco expresswayscope: - version: -

Trust: 0.8

vendor:シスコシステムズmodel:cisco telepresence video communication server ソフトウェアscope: - version: -

Trust: 0.8

vendor:ciscomodel:expressway seriesscope:lteversion:<=x12.6.3

Trust: 0.6

vendor:ciscomodel:telepresence video communication serverscope:lteversion:<=x12.6.3

Trust: 0.6

sources: CNVD: CNVD-2020-57574 // JVNDB: JVNDB-2020-012241 // NVD: CVE-2020-3596

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-3596
value: HIGH

Trust: 1.0

ykramarz@cisco.com: CVE-2020-3596
value: MEDIUM

Trust: 1.0

NVD: CVE-2020-3596
value: HIGH

Trust: 0.8

CNVD: CNVD-2020-57574
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202010-228
value: HIGH

Trust: 0.6

VULHUB: VHN-181721
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2020-3596
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: 1.8

CNVD: CNVD-2020-57574
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

VULHUB: VHN-181721
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: 0.1

nvd@nist.gov: CVE-2020-3596
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

ykramarz@cisco.com: CVE-2020-3596
baseSeverity: MEDIUM
baseScore: 5.9
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 2.2
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2020-3596
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-2020-57574 // VULHUB: VHN-181721 // JVNDB: JVNDB-2020-012241 // CNNVD: CNNVD-202010-228 // NVD: CVE-2020-3596 // NVD: CVE-2020-3596

PROBLEMTYPE DATA

problemtype:CWE-670

Trust: 1.1

problemtype:CWE-789

Trust: 1.0

problemtype:Always improper control flow implementation (CWE-670) [NVD Evaluation ]

Trust: 0.8

sources: VULHUB: VHN-181721 // JVNDB: JVNDB-2020-012241 // NVD: CVE-2020-3596

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202010-228

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202010-228

PATCH

title:cisco-sa-expressway-vcs-dos-n6xxTMZBurl:https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-vcs-dos-n6xxTMZB

Trust: 0.8

title:Patch for Cisco Expressway Series and Cisco TelePresence Video Communication Server memory exhaustion vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/236803

Trust: 0.6

title:Cisco Expressway Series and Cisco TelePresence Video Communication Server Security vulnerabilitiesurl:http://123.124.177.30/web/xxk/bdxqById.tag?id=130585

Trust: 0.6

sources: CNVD: CNVD-2020-57574 // JVNDB: JVNDB-2020-012241 // CNNVD: CNNVD-202010-228

EXTERNAL IDS

db:NVDid:CVE-2020-3596

Trust: 3.1

db:JVNDBid:JVNDB-2020-012241

Trust: 0.8

db:CNVDid:CNVD-2020-57574

Trust: 0.7

db:AUSCERTid:ESB-2020.3483

Trust: 0.6

db:CNNVDid:CNNVD-202010-228

Trust: 0.6

db:VULHUBid:VHN-181721

Trust: 0.1

sources: CNVD: CNVD-2020-57574 // VULHUB: VHN-181721 // JVNDB: JVNDB-2020-012241 // CNNVD: CNNVD-202010-228 // NVD: CVE-2020-3596

REFERENCES

url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-expressway-vcs-dos-n6xxtmzb

Trust: 2.3

url:https://nvd.nist.gov/vuln/detail/cve-2020-3596

Trust: 2.0

url:https://www.auscert.org.au/bulletins/esb-2020.3483/

Trust: 0.6

sources: CNVD: CNVD-2020-57574 // VULHUB: VHN-181721 // JVNDB: JVNDB-2020-012241 // CNNVD: CNNVD-202010-228 // NVD: CVE-2020-3596

SOURCES

db:CNVDid:CNVD-2020-57574
db:VULHUBid:VHN-181721
db:JVNDBid:JVNDB-2020-012241
db:CNNVDid:CNNVD-202010-228
db:NVDid:CVE-2020-3596

LAST UPDATE DATE

2024-08-14T13:24:10.589000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2020-57574date:2020-10-20T00:00:00
db:VULHUBid:VHN-181721date:2020-10-16T00:00:00
db:JVNDBid:JVNDB-2020-012241date:2021-04-27T06:50:00
db:CNNVDid:CNNVD-202010-228date:2022-11-15T00:00:00
db:NVDid:CVE-2020-3596date:2023-11-07T03:22:59.423

SOURCES RELEASE DATE

db:CNVDid:CNVD-2020-57574date:2020-10-20T00:00:00
db:VULHUBid:VHN-181721date:2020-10-08T00:00:00
db:JVNDBid:JVNDB-2020-012241date:2021-04-27T00:00:00
db:CNNVDid:CNNVD-202010-228date:2020-10-08T00:00:00
db:NVDid:CVE-2020-3596date:2020-10-08T05:15:15.557