CVE-2021-45925 - Vulnerability Details - OpenCVE

Observable discrepancies in the login process allow an attacker to guess legitimate user names registered in the BMC. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0012.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Lannerinc	Iac-ast2500a Iac-ast2500a Firmware

Configuration 1 [-]

AND

cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*

cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2021-32634	Observable discrepancies in the login process allow an attacker to guess legitimate user names registered in the BMC. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/
https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-45925/

History

Wed, 07 May 2025 14:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Nozomi

Published: 2022-10-24T00:00:00.000Z

Updated: 2025-05-07T13:51:47.591Z

Reserved: 2022-05-13T00:00:00.000Z

Link: CVE-2021-45925

Vulnrichment

Updated: 2024-08-04T04:54:31.106Z

NVD

Status : Modified

Published: 2022-10-24T14:15:49.847

Modified: 2024-11-21T06:33:16.683

Link: CVE-2021-45925

Redhat

No data.

OpenCVE Enrichment

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-45925", "assignerOrgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "assignerShortName": "Nozomi", "dateUpdated": "2025-05-07T13:51:47.591Z", "dateReserved": "2022-05-13T00:00:00.000Z", "datePublished": "2022-10-24T00:00:00.000Z"}, "containers": {"cna": {"title": "Username Enumeration", "providerMetadata": {"orgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "shortName": "Nozomi", "dateUpdated": "2022-12-01T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "Observable discrepancies in the login process allow an attacker to guess legitimate user names registered in the BMC. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0."}], "affected": [{"vendor": "Lanner Inc", "product": "IAC-AST2500A", "versions": [{"version": "1.10.0", "status": "affected"}]}], "references": [{"url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/"}, {"url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-45925/"}], "credits": [{"lang": "en", "value": "Andrea Palanca of Nozomi Networks found this bug during a security research activity."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-203 Information Exposure Through Discrepancy", "cweId": "CWE-203"}]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "source": {"advisory": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-45925/", "discovery": "EXTERNAL"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T04:54:31.106Z"}, "title": "CVE Program Container", "references": [{"url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/", "tags": ["x_transferred"]}, {"url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-45925/", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-05-07T13:51:20.736140Z", "id": "CVE-2021-45925", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-07T13:51:47.591Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/", "tags": ["x_transferred"]}, {"url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-45925/", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T04:54:31.106Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-45925", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-05-07T13:51:20.736140Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-07T13:51:32.268Z"}}], "cna": {"title": "Username Enumeration", "source": {"advisory": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-45925/", "discovery": "EXTERNAL"}, "credits": [{"lang": "en", "value": "Andrea Palanca of Nozomi Networks found this bug during a security research activity."}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "Lanner Inc", "product": "IAC-AST2500A", "versions": [{"status": "affected", "version": "1.10.0"}]}], "references": [{"url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/"}, {"url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-45925/"}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "descriptions": [{"lang": "en", "value": "Observable discrepancies in the login process allow an attacker to guess legitimate user names registered in the BMC. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-203", "description": "CWE-203 Information Exposure Through Discrepancy"}]}], "providerMetadata": {"orgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "shortName": "Nozomi", "dateUpdated": "2022-12-01T00:00:00.000Z"}}}, "cveMetadata": {"cveId": "CVE-2021-45925", "state": "PUBLISHED", "dateUpdated": "2025-05-07T13:51:47.591Z", "dateReserved": "2022-05-13T00:00:00.000Z", "assignerOrgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "datePublished": "2022-10-24T00:00:00.000Z", "assignerShortName": "Nozomi"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*", "matchCriteriaId": "8DD71184-078B-4B7E-BCB5-11E55B5928B7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*", "matchCriteriaId": "9007683B-45DA-471A-9CCB-A587DED8D973", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "Observable discrepancies in the login process allow an attacker to guess legitimate user names registered in the BMC. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0."}, {"lang": "es", "value": "Unas discrepancias observables en el proceso de inicio de sesi\u00f3n permiten a un atacante adivinar nombres de usuario leg\u00edtimos registrados en el BMC. Este problema afecta: Lanner Inc IAC-AST2500A versi\u00f3n de firmware est\u00e1ndar 1.10.0"}], "id": "CVE-2021-45925", "lastModified": "2024-11-21T06:33:16.683", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "prodsec@nozominetworks.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-10-24T14:15:49.847", "references": [{"source": "prodsec@nozominetworks.com", "tags": ["Third Party Advisory"], "url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/"}, {"source": "prodsec@nozominetworks.com", "tags": ["Third Party Advisory"], "url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-45925/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-45925/"}], "sourceIdentifier": "prodsec@nozominetworks.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-203"}], "source": "prodsec@nozominetworks.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-203"}], "source": "nvd@nist.gov", "type": "Primary"}]}