CVE-2021-32976

Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities	Vendor Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01	Mitigation Third Party Advisory US Government Resource

Advertisement

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:moxa:nport_iaw5150a-6i\/o_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:moxa:nport_iaw5150a-6i\/o:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:moxa:nport_iaw5150a-12i\/o_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:moxa:nport_iaw5150a-12i\/o:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:moxa:nport_iaw5250a-6i\/o_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:moxa:nport_iaw5250a-6i\/o:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:moxa:nport_iaw5250a-12i\/o_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:moxa:nport_iaw5250a-12i\/o:-:*:*:*:*:*:*:*

Information

Published : 2022-04-01 16:15

Updated : 2022-04-11 11:16

NVD link : CVE-2021-32976

Mitre link : CVE-2021-32976

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Advertisement

Products Affected

moxa

nport_iaw5250a-6i\/o
nport_iaw5150a-6i\/o_firmware
nport_iaw5250a-12i\/o
nport_iaw5250a-12i\/o_firmware
nport_iaw5250a-6i\/o_firmware
nport_iaw5150a-12i\/o_firmware
nport_iaw5150a-12i\/o
nport_iaw5150a-6i\/o

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities", "name": "https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01", "name": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01", "tags": ["Mitigation", "Third Party Advisory", "US Government Resource"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-787"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-32976", "ASSIGNER": "ics-cert@hq.dhs.gov"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2022-04-01T23:15Z", "configurations": {"nodes": [{"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:moxa:nport_iaw5150a-6i\\/o_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2.2"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:moxa:nport_iaw5150a-6i\\/o:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:moxa:nport_iaw5150a-12i\\/o_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2.2"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:moxa:nport_iaw5150a-12i\\/o:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:moxa:nport_iaw5250a-6i\\/o_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2.2"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:moxa:nport_iaw5250a-6i\\/o:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:moxa:nport_iaw5250a-12i\\/o_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2.2"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:moxa:nport_iaw5250a-12i\\/o:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-04-11T18:16Z"}