CVE-2020-28407

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{"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:swtpm_project:swtpm:*:*:*:*:*:*:*:*", "matchCriteriaId": "A28C4936-308A-411B-AB1A-8BEFFCD5EDE0", "versionEndExcluding": "0.4.2", "vulnerable": true}, {"criteria": "cpe:2.3:a:swtpm_project:swtpm:0.5.0:*:*:*:*:*:*:*", "matchCriteriaId": "205711EB-43BF-493A-B297-3FC5B3014B15", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In swtpm before 0.4.2 and 0.5.x before 0.5.1, a local attacker may be able to overwrite arbitrary files via a symlink attack against a temporary file such as TMP2-00.permall."}, {"lang": "es", "value": "En swtpm anterior a 0.4.2 y 0.5.x anterior a 0.5.1, un atacante local podr\u00eda sobrescribir archivos arbitrarios mediante un ataque de enlace simb\u00f3lico contra un archivo temporal como TMP2-00.permall."}], "id": "CVE-2020-28407", "lastModified": "2026-06-17T03:10:24.760", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2020-28407", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-09-05T20:19:19.183984Z", "version": "2.0.3"}}]}, "published": "2023-11-03T04:15:15.447", "references": [{"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://bugzilla.suse.com/show_bug.cgi?id=1198395"}, {"source": "cve@mitre.org", "tags": ["Release Notes"], "url": "https://github.com/stefanberger/swtpm/releases/tag/v0.4.2"}, {"source": "cve@mitre.org", "tags": ["Release Notes"], "url": "https://github.com/stefanberger/swtpm/releases/tag/v0.5.1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://bugzilla.suse.com/show_bug.cgi?id=1198395"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://github.com/stefanberger/swtpm/releases/tag/v0.4.2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://github.com/stefanberger/swtpm/releases/tag/v0.5.1"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "swtpm: symlink issue may lead to privilege escalation", "id": "1964465", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1964465"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "status": "draft"}, "cwe": "CWE-59", "details": ["In swtpm before 0.4.2 and 0.5.x before 0.5.1, a local attacker may be able to overwrite arbitrary files via a symlink attack against a temporary file such as TMP2-00.permall.", "A flaw was found in swtpm. This flaw allows an attacker to create a symbolic link with the name of the temporary file (TMP2-00.permall for TPM 2) and have this point to a valuable file, which will get overwritten by swtpm. The success of the attack depends on the attacker having access to the TPM's state directory (--tpmstate dir). The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."], "name": "CVE-2020-28407", "package_state": [{"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Will not fix", "package_name": "virt:8.2/swtpm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "virt:8.3/swtpm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "virt:av/swtpm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "swtpm", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2020-11-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-28407\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-28407"], "threat_severity": "Moderate"}

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