CVE-2021-20253

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{"affected": [{"affectedData": [{"product": "ansible-tower", "vendor": "n/a", "versions": [{"status": "affected", "version": "ansible-tower 3.8.2, ansible-tower 3.7.5, ansible-tower 3.6.7"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*", "matchCriteriaId": "4D06CE61-E92C-4FE6-AF2D-445E777B2479", "versionEndExcluding": "3.6.7", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*", "matchCriteriaId": "28453D46-ECC9-47F8-BF01-FD7826A847E4", "versionEndExcluding": "3.7.5", "versionStartIncluding": "3.7.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*", "matchCriteriaId": "DC9B9029-1A47-42E6-8409-C36F0AF9F62C", "versionEndExcluding": "3.8.2", "versionStartIncluding": "3.8.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in ansible-tower. The default installation is vulnerable to Job Isolation escape allowing an attacker to elevate the privilege from a low privileged user to the awx user from outside the isolated environment. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo en ansible-tower. La instalaci\u00f3n predeterminada es vulnerable al escape de Job Isolation, permitiendo a un atacante elevar el privilegio de un usuario poco privilegiado al usuario awx desde fuera del entorno aislado. La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de los datos, as\u00ed como la disponibilidad del sistema"}], "id": "CVE-2021-20253", "lastModified": "2026-06-17T03:33:33.003", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "LOCAL", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 3.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:H/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 1.5, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-03-09T18:15:15.157", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1928847"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1928847"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-552"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Matei Mal Badanoiu (Deloitte Romania) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2021:0778", "cpe": "cpe:/a:redhat:ansible_tower:3.6::el7", "package": "ansible-tower-36/ansible-tower:3.6.7-1", "product_name": "Red Hat Ansible Tower 3.6 for RHEL 7", "release_date": "2021-03-09T00:00:00Z"}, {"advisory": "RHSA-2021:0779", "cpe": "cpe:/a:redhat:ansible_tower:3.7::el7", "package": "ansible-tower-37/ansible-tower-rhel7:3.7.5-1", "product_name": "Red Hat Ansible Tower 3.7 for RHEL 7", "release_date": "2021-03-09T00:00:00Z"}, {"advisory": "RHSA-2021:0780", "cpe": "cpe:/a:redhat:ansible_automation_platform:3.8::el7", "package": "ansible-tower-38/ansible-runner-rhel7:1.4.7-1", "product_name": "Red Hat Ansible Tower 3.8 for RHEL 7", "release_date": "2021-03-09T00:00:00Z"}, {"advisory": "RHSA-2021:0780", "cpe": "cpe:/a:redhat:ansible_automation_platform:3.8::el7", "package": "ansible-tower-38/ansible-tower-rhel7:3.8.2-1", "product_name": "Red Hat Ansible Tower 3.8 for RHEL 7", "release_date": "2021-03-09T00:00:00Z"}], "bugzilla": {"description": "ansible-tower: Privilege escalation via job isolation escape", "id": "1928847", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1928847"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-552", "details": ["A flaw was found in ansible-tower. The default installation is vulnerable to Job Isolation escape allowing an attacker to elevate the privilege from a low privileged user to the awx user from outside the isolated environment. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.", "A flaw was found in ansible-tower. The default installation is vulnerable to Job Isolation escape allowing an attacker to elevate the privilege from a low privileged user to the awx user from outside the isolated environment. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."], "mitigation": {"lang": "en:us", "value": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible."}, "name": "CVE-2021-20253", "package_state": [{"cpe": "cpe:/a:redhat:ansible_automation_platform", "fix_state": "Affected", "package_name": "ansible-tower", "product_name": "Red Hat Ansible Automation Platform 1.2"}], "public_date": "2021-03-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-20253\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-20253"], "threat_severity": "Important"}

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