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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*", "matchCriteriaId": "A5584C95-5CB1-4D45-8C05-633746AE2AB4", "versionEndIncluding": "4.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Squid through 4.7. When Squid is run as root, it spawns its child processes as a lesser user, by default the user nobody. This is done via the leave_suid call. leave_suid leaves the Saved UID as 0. This makes it trivial for an attacker who has compromised the child process to escalate their privileges back to root."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Squid versiones hasta 4.7. Cuando Squid se ejecuta como root, genera sus procesos hijos como un usuario menor, por defecto el usuario nobody. Esto se realiza por medio de la llamada de leave_suid. leave_suid deja el UID Guardado como 0. Esto hace que sea trivial para un atacante que ha comprometido el proceso hijo escalar sus privilegios de nuevo a root."}], "id": "CVE-2019-12522", "lastModified": "2024-11-21T04:23:01.737", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 4.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-04-15T19:15:12.473", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12522.txt"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210205-0006/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://gitlab.com/jeriko.one/security/-/blob/master/squid/CVEs/CVE-2019-12522.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210205-0006/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "squid: lack of UID assignment in child process spawning could lead to privileges escalation", "id": "1827580", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1827580"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L", "status": "draft"}, "cwe": "CWE-266", "details": ["An issue was discovered in Squid through 4.7. When Squid is run as root, it spawns its child processes as a lesser user, by default the user nobody. This is done via the leave_suid call. leave_suid leaves the Saved UID as 0. This makes it trivial for an attacker who has compromised the child process to escalate their privileges back to root.", "A flaw was found in squid. When Squid is run as root, it spawns its child processes as a lesser user, by default the user nobody. This is done via the leave_suid call. leave_suid leaves the Saved UID as 0. This makes it trivial for an attacker who has compromised the child process to escalate their privileges back to root. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."], "name": "CVE-2019-12522", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "squid34", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "squid:4/squid", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2020-04-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-12522\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-12522"], "statement": "This issue is not a big problem on its own, as it requires another remote code execution vulnerability or that a local user has the privileges to modify the squid processes to be exploited. Thus, it is actually closer to a security enhancement than a vulnerability.", "threat_severity": "Low"}

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