CVE-2021-3934 - Vulnerability Details - OpenCVE

Description

ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command

Published: 2021-11-12

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

ohmyzsh

ohmyzsh/ohmyzsh

affected

Version	Status	Constraints
`unspecified`	affected	< 6cb41b70a6d04301fd50cd5862ecd705ba226c0e

Configuration 1 [-]

cpe:2.3:a:planetargon:oh_my_zsh:*:*:*:*:*:*:*:*

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-2021-27148	ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

Access Vector Network

Access Complexity High

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00598.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e
https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce

History

No history.

Subscriptions

Planetargon Oh My Zsh

MITRE

Status: PUBLISHED

Assigner: @huntrdev

Published: 2021-11-12T11:45:10.000Z

Updated: 2024-08-03T17:09:09.615Z

Reserved: 2021-11-08T00:00:00.000Z

Link: CVE-2021-3934

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-11-12T12:15:07.460

Modified: 2026-06-17T04:06:00.953

Link: CVE-2021-3934

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

{"containers": {"cna": {"affected": [{"product": "ohmyzsh/ohmyzsh", "vendor": "ohmyzsh", "versions": [{"lessThan": "6cb41b70a6d04301fd50cd5862ecd705ba226c0e", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command"}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-78", "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-11-12T11:45:10.000Z", "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntrdev"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e"}], "source": {"advisory": "ad2b5c3f-a3ce-4407-94dc-354c723310ce", "discovery": "EXTERNAL"}, "title": "OS Command Injection in ohmyzsh/ohmyzsh", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@huntr.dev", "ID": "CVE-2021-3934", "STATE": "PUBLIC", "TITLE": "OS Command Injection in ohmyzsh/ohmyzsh"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "ohmyzsh/ohmyzsh", "version": {"version_data": [{"version_affected": "<", "version_value": "6cb41b70a6d04301fd50cd5862ecd705ba226c0e"}]}}]}, "vendor_name": "ohmyzsh"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command"}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-78 Improper Neutralization of Special Elements used in an OS Command"}]}]}, "references": {"reference_data": [{"name": "https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce", "refsource": "CONFIRM", "url": "https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce"}, {"name": "https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e", "refsource": "MISC", "url": "https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e"}]}, "source": {"advisory": "ad2b5c3f-a3ce-4407-94dc-354c723310ce", "discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.615Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e"}]}]}, "cveMetadata": {"assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "cveId": "CVE-2021-3934", "datePublished": "2021-11-12T11:45:10.000Z", "dateReserved": "2021-11-08T00:00:00.000Z", "dateUpdated": "2024-08-03T17:09:09.615Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "ohmyzsh/ohmyzsh", "vendor": "ohmyzsh", "versions": [{"lessThan": "6cb41b70a6d04301fd50cd5862ecd705ba226c0e", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@huntr.dev"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:planetargon:oh_my_zsh:*:*:*:*:*:*:*:*", "matchCriteriaId": "80FD5E81-3E73-4921-925C-E55098EAE4B1", "versionEndExcluding": "2021-11-11", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command"}, {"lang": "es", "value": "ohmyzsh es vulnerable a una Neutralizaci\u00f3n Inapropiada de Elementos Especiales usados en un Comando del Sistema Operativo"}], "id": "CVE-2021-3934", "lastModified": "2026-06-17T04:06:00.953", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "security@huntr.dev", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-11-12T12:15:07.460", "references": [{"source": "security@huntr.dev", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e"}, {"source": "security@huntr.dev", "tags": ["Permissions Required"], "url": "https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required"], "url": "https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "security@huntr.dev", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-78"}], "source": "nvd@nist.gov", "type": "Primary"}]}