CVE-2021-27432 - Vulnerability Details - OpenCVE

Description

OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.

Published: 2021-05-20

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

OPC Foundation OPC UA .NET Standard and OPC UA .NET Legacy

affected

Version	Status	Constraints
`OPC UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:opcfoundation:ua-.net-legacy:-:::::::*
	cpe:2.3:a:opcfoundation:ua_.net_standard_stack::::::::

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-14186	OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00222.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03

History

No history.

Subscriptions

Opcfoundation Ua-.net-legacy Ua .net Standard Stack

MITRE

Status: PUBLISHED

Assigner: icscert

Published: 2021-05-20T15:20:01.000Z

Updated: 2024-08-03T20:48:17.220Z

Reserved: 2021-02-19T00:00:00.000Z

Link: CVE-2021-27432

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-05-20T16:15:07.967

Modified: 2024-11-21T05:57:58.743

Link: CVE-2021-27432

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-674

{"containers": {"cna": {"affected": [{"product": "OPC Foundation OPC UA .NET Standard and OPC UA .NET Legacy", "vendor": "n/a", "versions": [{"status": "affected", "version": "OPC UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy"}]}], "descriptions": [{"lang": "en", "value": "OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-674", "description": "UNCONTROLLED RECURSION CWE-674", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-05-20T15:20:01.000Z", "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "ics-cert@hq.dhs.gov", "ID": "CVE-2021-27432", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "OPC Foundation OPC UA .NET Standard and OPC UA .NET Legacy", "version": {"version_data": [{"version_value": "OPC UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "UNCONTROLLED RECURSION CWE-674"}]}]}, "references": {"reference_data": [{"name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03", "refsource": "MISC", "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:48:17.220Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03"}]}]}, "cveMetadata": {"assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "assignerShortName": "icscert", "cveId": "CVE-2021-27432", "datePublished": "2021-05-20T15:20:01.000Z", "dateReserved": "2021-02-19T00:00:00.000Z", "dateUpdated": "2024-08-03T20:48:17.220Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:opcfoundation:ua-.net-legacy:-:*:*:*:*:*:*:*", "matchCriteriaId": "B04F956C-0D6B-453D-AA1B-4AB522B0C474", "vulnerable": true}, {"criteria": "cpe:2.3:a:opcfoundation:ua_.net_standard_stack:*:*:*:*:*:*:*:*", "matchCriteriaId": "2A02376A-04D5-48A2-9D3E-242FA6E3C00B", "versionEndExcluding": "1.4.365.48", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow."}, {"lang": "es", "value": "OPC Foundation UA ??.NET Standard versiones anteriores a 1.4.365.48 y OPC UA .NET Legacy, son vulnerables a una recursividad no controlada, que puede permitir a un atacante desencadenar un desbordamiento de pila"}], "id": "CVE-2021-27432", "lastModified": "2024-11-21T05:57:58.743", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-20T16:15:07.967", "references": [{"source": "ics-cert@hq.dhs.gov", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}]}