CVE-2021-20024

Multiple Out-of-Bound read vulnerability in SonicWall Switch when handling LLDP Protocol allows an attacker to cause a system instability or potentially read sensitive information from the memory locations.

CVSS v3 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:L/Au:N/C:P/I:N/A:C

Exploitability : 6.5 / Impact : 7.8

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0011	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:sonicwall:switch:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:sonicwall:sws12-10fpoe:-:::::::*
	cpe:2.3:h:sonicwall:sws12-8:-:::::::*
	cpe:2.3:h:sonicwall:sws12-8poe:-:::::::*
	cpe:2.3:h:sonicwall:sws14-24:-:::::::*
	cpe:2.3:h:sonicwall:sws14-24fpoe:-:::::::*
	cpe:2.3:h:sonicwall:sws14-48:-:::::::*
	cpe:2.3:h:sonicwall:sws14-48fpoe:-:::::::*

History

No history.

Information

Published : 2021-07-09 22:15

Updated : 2021-07-16 16:59

NVD link : CVE-2021-20024

Mitre link : CVE-2021-20024

CVE.ORG link : CVE-2021-20024

JSON object : View

Products Affected

sonicwall

sws14-24
sws14-48fpoe
switch
sws12-10fpoe
sws12-8
sws12-8poe
sws14-48
sws14-24fpoe

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2021-20024", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:P/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 7.8, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}]}, "published": "2021-07-09T22:15:08.320", "references": [{"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0011", "tags": ["Vendor Advisory"], "source": "PSIRT@sonicwall.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}, {"type": "Secondary", "source": "PSIRT@sonicwall.com", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "Multiple Out-of-Bound read vulnerability in SonicWall Switch when handling LLDP Protocol allows an attacker to cause a system instability or potentially read sensitive information from the memory locations."}, {"lang": "es", "value": "M\u00faltiples vulnerabilidades de lectura fuera de l\u00edmites en SonicWall Switch cuando se maneja el protocolo LLDP permite a un atacante causar una inestabilidad del sistema o leer potencialmente informaci\u00f3n confidencial de las ubicaciones de memoria"}], "lastModified": "2021-07-16T16:59:00.130", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:sonicwall:switch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "076786F3-94BB-447A-B66C-07B89A2F1E58", "versionEndIncluding": "1.0.0.5-16"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:sonicwall:sws12-10fpoe:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "AC1B14D9-15C7-4490-9A2C-4FD9462CF465"}, {"criteria": "cpe:2.3:h:sonicwall:sws12-8:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F93E9E20-D465-490B-B2E0-A92670684ECE"}, {"criteria": "cpe:2.3:h:sonicwall:sws12-8poe:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A756CC39-180C-4293-8A45-7C55DC88639B"}, {"criteria": "cpe:2.3:h:sonicwall:sws14-24:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "72DF3E57-4840-4327-9796-D92F663FFF4E"}, {"criteria": "cpe:2.3:h:sonicwall:sws14-24fpoe:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "68C4A661-5DAE-41B2-8D51-8E8F0AB4E26E"}, {"criteria": "cpe:2.3:h:sonicwall:sws14-48:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "04079B4A-8CF2-4D17-B9AB-CF9A84692CAD"}, {"criteria": "cpe:2.3:h:sonicwall:sws14-48fpoe:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "49B54692-77FD-411F-90F4-AAE31E48D5B8"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "PSIRT@sonicwall.com"}