CVE-2021-37587 - Vulnerability Details - OpenCVE

Description

In Charm 0.43, any single user can decrypt DAC-MACS or MA-ABE-YJ14 data.

Published: 2021-07-27

Score: 6.5 Medium

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

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:jhu:charm:0.43:*:*:*:*:*:*:*

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-2021-24145	In Charm 0.43, any single user can decrypt DAC-MACS or MA-ABE-YJ14 data.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00181.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://eprint.iacr.org/2020/460
https://github.com/JHUISI/charm/issues/276
https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html
https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html
https://www2.hci.uni-hannover.de/papers/Tan2019.pdf

History

No history.

Subscriptions

Jhu Charm

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-07-27T22:06:48.000Z

Updated: 2024-08-04T01:23:01.229Z

Reserved: 2021-07-27T00:00:00.000Z

Link: CVE-2021-37587

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-07-30T14:15:18.543

Modified: 2024-11-21T06:15:28.517

Link: CVE-2021-37587

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-327

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "In Charm 0.43, any single user can decrypt DAC-MACS or MA-ABE-YJ14 data."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-07-27T22:06:48.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/JHUISI/charm/issues/276"}, {"tags": ["x_refsource_MISC"], "url": "https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html"}, {"tags": ["x_refsource_MISC"], "url": "https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html"}, {"tags": ["x_refsource_MISC"], "url": "https://eprint.iacr.org/2020/460"}, {"tags": ["x_refsource_MISC"], "url": "https://www2.hci.uni-hannover.de/papers/Tan2019.pdf"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-37587", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In Charm 0.43, any single user can decrypt DAC-MACS or MA-ABE-YJ14 data."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/JHUISI/charm/issues/276", "refsource": "MISC", "url": "https://github.com/JHUISI/charm/issues/276"}, {"name": "https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html", "refsource": "MISC", "url": "https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html"}, {"name": "https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html", "refsource": "MISC", "url": "https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html"}, {"name": "https://eprint.iacr.org/2020/460", "refsource": "MISC", "url": "https://eprint.iacr.org/2020/460"}, {"name": "https://www2.hci.uni-hannover.de/papers/Tan2019.pdf", "refsource": "MISC", "url": "https://www2.hci.uni-hannover.de/papers/Tan2019.pdf"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:23:01.229Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/JHUISI/charm/issues/276"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://eprint.iacr.org/2020/460"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www2.hci.uni-hannover.de/papers/Tan2019.pdf"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-37587", "datePublished": "2021-07-27T22:06:48.000Z", "dateReserved": "2021-07-27T00:00:00.000Z", "dateUpdated": "2024-08-04T01:23:01.229Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:jhu:charm:0.43:*:*:*:*:*:*:*", "matchCriteriaId": "86DDEE36-0E69-4143-ADE7-3B1AE20B9631", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In Charm 0.43, any single user can decrypt DAC-MACS or MA-ABE-YJ14 data."}, {"lang": "es", "value": "En Charm versi\u00f3n 0.43, cualquier usuario puede descifrar datos DAC-MACS o MA-ABE-YJ14"}], "id": "CVE-2021-37587", "lastModified": "2024-11-21T06:15:28.517", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-07-30T14:15:18.543", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://eprint.iacr.org/2020/460"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/JHUISI/charm/issues/276"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html"}, {"source": "cve@mitre.org", "tags": ["Technical Description", "Third Party Advisory"], "url": "https://www2.hci.uni-hannover.de/papers/Tan2019.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://eprint.iacr.org/2020/460"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/JHUISI/charm/issues/276"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Technical Description", "Third Party Advisory"], "url": "https://www2.hci.uni-hannover.de/papers/Tan2019.pdf"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-327"}], "source": "nvd@nist.gov", "type": "Primary"}]}