CVE-2021-42771

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-12-10T02:06:18.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.tenable.com/security/research/tra-2021-14"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/python-babel/babel/pull/782"}, {"tags": ["x_refsource_MISC"], "url": "https://lists.debian.org/debian-lts/2021/10/msg00040.html"}, {"name": "[debian-lts-announce] 20211021 [SECURITY] [DLA 2790-1] python-babel security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html"}, {"name": "DSA-5018", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2021/dsa-5018"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-42771", "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": "Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://www.tenable.com/security/research/tra-2021-14", "refsource": "MISC", "url": "https://www.tenable.com/security/research/tra-2021-14"}, {"name": "https://github.com/python-babel/babel/pull/782", "refsource": "MISC", "url": "https://github.com/python-babel/babel/pull/782"}, {"name": "https://lists.debian.org/debian-lts/2021/10/msg00040.html", "refsource": "MISC", "url": "https://lists.debian.org/debian-lts/2021/10/msg00040.html"}, {"name": "[debian-lts-announce] 20211021 [SECURITY] [DLA 2790-1] python-babel security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html"}, {"name": "DSA-5018", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2021/dsa-5018"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T03:38:50.154Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.tenable.com/security/research/tra-2021-14"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/python-babel/babel/pull/782"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://lists.debian.org/debian-lts/2021/10/msg00040.html"}, {"name": "[debian-lts-announce] 20211021 [SECURITY] [DLA 2790-1] python-babel security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html"}, {"name": "DSA-5018", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2021/dsa-5018"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-42771", "datePublished": "2021-10-20T20:05:35.000Z", "dateReserved": "2021-10-20T00:00:00.000Z", "dateUpdated": "2024-08-04T03:38:50.154Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:pocoo:babel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0800E6CF-AE3A-4E99-AD6E-0F8F9CA736F3", "versionEndExcluding": "2.9.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution."}, {"lang": "es", "value": "Babel.Locale en Babel versiones anteriores a 2.9.1, permite a atacantes cargar archivos .dat de configuraci\u00f3n regional arbitrarios (que contienen objetos Python serializados) por medio de salto de directorio, lo que conlleva a una ejecuci\u00f3n de c\u00f3digo"}], "id": "CVE-2021-42771", "lastModified": "2026-06-17T04:10:06.940", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-10-20T21:15:07.930", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/python-babel/babel/pull/782"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts/2021/10/msg00040.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2021/dsa-5018"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.tenable.com/security/research/tra-2021-14"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/python-babel/babel/pull/782"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts/2021/10/msg00040.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2021/dsa-5018"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.tenable.com/security/research/tra-2021-14"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2021:4151", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "python27:2.7-8050020210811095446.3e7ace8b", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-11-09T00:00:00Z"}, {"advisory": "RHSA-2021:4162", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "python38:3.8-8050020210811101222.e3d35cca", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-11-09T00:00:00Z"}, {"advisory": "RHSA-2021:4162", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "python38-devel:3.8-8050020210811101222.e3d35cca", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-11-09T00:00:00Z"}, {"advisory": "RHSA-2021:4201", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "babel-0:2.5.1-7.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-11-09T00:00:00Z"}, {"advisory": "RHSA-2021:3252", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "python27-babel-0:0.9.6-10.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3252", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "python27-python-0:2.7.18-3.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3252", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "python27-python-jinja2-0:2.6-16.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3252", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "python27-python-pygments-0:1.5-5.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-babel-0:2.7.0-12.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-0:3.8.11-2.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-cryptography-0:2.8-5.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-jinja2-0:2.10.3-6.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-lxml-0:4.4.1-7.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-pip-0:19.3.1-2.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-urllib3-0:1.25.7-7.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3252", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "python27-babel-0:0.9.6-10.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3252", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "python27-python-0:2.7.18-3.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3252", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "python27-python-jinja2-0:2.6-16.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3252", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "python27-python-pygments-0:1.5-5.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-babel-0:2.7.0-12.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-0:3.8.11-2.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-cryptography-0:2.8-5.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-jinja2-0:2.10.3-6.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-lxml-0:4.4.1-7.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-pip-0:19.3.1-2.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}, {"advisory": "RHSA-2021:3254", "cpe": "cpe:/a:redhat:rhel_software_collections:3::el7", "package": "rh-python38-python-urllib3-0:1.25.7-7.el7", "product_name": "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS", "release_date": "2021-08-24T00:00:00Z"}], "bugzilla": {"description": "python-babel: Relative path traversal allows attacker to load arbitrary locale files and execute arbitrary code", "id": "1955615", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1955615"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-22", "details": ["Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution.", "A flaw was found in python-babel. A path traversal vulnerability was found in how locale data files are checked and loaded within python-babel, allowing a local attacker to trick an application that uses python-babel to load a file outside of the intended locale directory. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability."], "name": "CVE-2021-42771", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "babel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "babel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "babel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openstack:10", "fix_state": "Out of support scope", "package_name": "babel", "product_name": "Red Hat OpenStack Platform 10 (Newton)"}, {"cpe": "cpe:/a:redhat:openstack:13", "fix_state": "Out of support scope", "package_name": "babel", "product_name": "Red Hat OpenStack Platform 13 (Queens)"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Affected", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:storage:3", "fix_state": "Affected", "package_name": "babel", "product_name": "Red Hat Storage 3"}], "public_date": "2021-04-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-42771\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-42771\nhttps://www.tenable.com/security/research/tra-2021-14"], "statement": "It is rather uncommon for applications to use Babel.Locale() with an untrusted attacker-controlled language argument. A static language abbreviation string (e.g. \"en\") is most commonly used instead. For this reason, this flaw has been rated as having a security impact of Moderate.", "threat_severity": "Moderate"}

{}