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ID

VAR-202104-0757


CVE

CVE-2021-20023


TITLE

Pillow Buffer error vulnerability

Trust: 0.6

sources: CNNVD: CNNVD-202104-975

DESCRIPTION

SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host. 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. Sonicwall On-premise Email is an application of Sonicwall Corporation in the United States. Used to detect email security. SonicWall On-premise Email Security (ES): before 10.0.9.6173 has a path traversal vulnerability that is due to an input validation error. The following products and versions are affected: SonicWall On-premise Email Security (ES) prior to 10.0.9.6173

Trust: 1.62

sources: NVD: CVE-2021-20023 // CNNVD: CNNVD-202104-975 // VULHUB: VHN-377642 // VULMON: CVE-2021-20023

AFFECTED PRODUCTS

vendor:sonicwallmodel:hosted email securityscope:ltversion:10.0.9.6173

Trust: 1.0

vendor:sonicwallmodel:email securityscope:ltversion:10.0.9.6173

Trust: 1.0

sources: NVD: CVE-2021-20023

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-20023
value: MEDIUM

Trust: 1.0

CNNVD: CNNVD-202104-975
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202104-1524
value: MEDIUM

Trust: 0.6

VULHUB: VHN-377642
value: MEDIUM

Trust: 0.1

VULMON: CVE-2021-20023
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-20023
severity: MEDIUM
baseScore: 4.0
vectorString: AV:N/AC:L/AU:S/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 8.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

VULHUB: VHN-377642
severity: MEDIUM
baseScore: 4.0
vectorString: AV:N/AC:L/AU:S/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 8.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2021-20023
baseSeverity: MEDIUM
baseScore: 4.9
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 1.2
impactScore: 3.6
version: 3.1

Trust: 1.0

sources: VULHUB: VHN-377642 // VULMON: CVE-2021-20023 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202104-1524 // NVD: CVE-2021-20023

PROBLEMTYPE DATA

problemtype:CWE-22

Trust: 1.1

sources: VULHUB: VHN-377642 // NVD: CVE-2021-20023

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202104-1524

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202104-975

PATCH

title:Sonicwall On-premise Email Repair measures for path traversal vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=147977

Trust: 0.6

title:Known Exploited Vulnerabilities Detectorurl:https://github.com/Ostorlab/KEV

Trust: 0.1

title:Fireeye Threat Researchurl:https://www.fireeye.com/blog/threat-research/2021/04/zero-day-exploits-in-sonicwall-email-security-lead-to-compromise.html

Trust: 0.1

sources: VULMON: CVE-2021-20023 // CNNVD: CNNVD-202104-1524

EXTERNAL IDS

db:NVDid:CVE-2021-20023

Trust: 1.8

db:CS-HELPid:SB2021041363

Trust: 0.6

db:CNNVDid:CNNVD-202104-975

Trust: 0.6

db:CS-HELPid:SB2021042016

Trust: 0.6

db:CNNVDid:CNNVD-202104-1524

Trust: 0.6

db:VULHUBid:VHN-377642

Trust: 0.1

db:VULMONid:CVE-2021-20023

Trust: 0.1

sources: VULHUB: VHN-377642 // VULMON: CVE-2021-20023 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202104-1524 // NVD: CVE-2021-20023

REFERENCES

url:https://psirt.global.sonicwall.com/vuln-detail/snwlid-2021-0010

Trust: 1.8

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

Trust: 0.6

url:https://nvd.nist.gov/vuln/detail/cve-2021-20023

Trust: 0.6

url:https://www.cybersecurity-help.cz/vdb/sb2021042016

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/22.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

url:https://www.fireeye.com/blog/threat-research/2021/04/zero-day-exploits-in-sonicwall-email-security-lead-to-compromise.html

Trust: 0.1

url:https://github.com/ostorlab/kev

Trust: 0.1

sources: VULHUB: VHN-377642 // VULMON: CVE-2021-20023 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202104-1524 // NVD: CVE-2021-20023

SOURCES

db:VULHUBid:VHN-377642
db:VULMONid:CVE-2021-20023
db:CNNVDid:CNNVD-202104-975
db:CNNVDid:CNNVD-202104-1524
db:NVDid:CVE-2021-20023

LAST UPDATE DATE

2024-11-23T20:18:05.616000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-377642date:2022-07-14T00:00:00
db:VULMONid:CVE-2021-20023date:2022-07-14T00:00:00
db:CNNVDid:CNNVD-202104-975date:2021-04-14T00:00:00
db:CNNVDid:CNNVD-202104-1524date:2022-07-15T00:00:00
db:NVDid:CVE-2021-20023date:2024-11-21T05:45:48.097

SOURCES RELEASE DATE

db:VULHUBid:VHN-377642date:2021-04-20T00:00:00
db:VULMONid:CVE-2021-20023date:2021-04-20T00:00:00
db:CNNVDid:CNNVD-202104-975date:2021-04-13T00:00:00
db:CNNVDid:CNNVD-202104-1524date:2021-04-20T00:00:00
db:NVDid:CVE-2021-20023date:2021-04-20T12:15:12.587