{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-4001","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2023-07-28T20:57:15.937Z","datePublished":"2024-01-15T11:10:19.517Z","dateUpdated":"2025-11-20T19:52:00.512Z"},"containers":{"cna":{"title":"Grub2: bypass the grub password protection feature","metrics":[{"other":{"content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"PHYSICAL","availabilityImpact":"HIGH","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"An authentication bypass flaw was found in GRUB due to the way that GRUB uses the UUID of a device to search for the configuration file that contains the password hash for the GRUB password protection feature. An attacker capable of attaching an external drive such as a USB stick containing a file system with a duplicate UUID (the same as in the \"/boot/\" file system) can bypass the GRUB password protection feature on UEFI systems, which enumerate removable drives before non-removable ones. This issue was introduced in a downstream patch in Red Hat's version of grub2 and does not affect the upstream package."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"grub2","defaultStatus":"affected","versions":[{"version":"1:2.06-70.el9_3.2","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/o:redhat:enterprise_linux:9::baseos"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9.0 Extended Update Support","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"grub2","defaultStatus":"affected","versions":[{"version":"1:2.06-27.el9_0.16","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/o:redhat:rhel_eus:9.0::baseos"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9.2 Extended Update Support","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"grub2","defaultStatus":"affected","versions":[{"version":"1:2.06-61.el9_2.2","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/o:redhat:rhel_eus:9.2::baseos"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"grub2","defaultStatus":"unaffected","cpes":["cpe:/o:redhat:enterprise_linux:8"]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2024:0437","name":"RHSA-2024:0437","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:0456","name":"RHSA-2024:0456","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2024:0468","name":"RHSA-2024:0468","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2023-4001","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2224951","name":"RHBZ#2224951","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/"}],"datePublic":"2024-01-09T00:00:00.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-290","description":"Authentication Bypass by Spoofing","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-290: Authentication Bypass by Spoofing","timeline":[{"lang":"en","time":"2023-07-24T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2024-01-09T00:00:00.000Z","value":"Made public."}],"credits":[{"lang":"en","value":"Red Hat would like to thank Maxim Suhanov for reporting this issue."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2025-11-20T19:52:00.512Z"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T07:17:10.437Z"},"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2024/01/15/3","tags":["x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2024:0437","name":"RHSA-2024:0437","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2024:0456","name":"RHSA-2024:0456","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://access.redhat.com/errata/RHSA-2024:0468","name":"RHSA-2024:0468","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"tags":["vdb-entry","x_refsource_REDHAT","x_transferred"],"url":"https://access.redhat.com/security/cve/CVE-2023-4001"},{"name":"RHBZ#2224951","tags":["issue-tracking","x_refsource_REDHAT","x_transferred"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2224951"},{"url":"https://dfir.ru/2024/01/15/cve-2023-4001-a-vulnerability-in-the-downstream-grub-boot-manager/","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OBADMKHQLJOBA32Q7XPNSYMVHVAFDCB/","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHLZQ47HM64NDOHMHYO7VIJFYD5ZPPYN/","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20240216-0006/","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-01-22T19:43:22.277849Z","id":"CVE-2023-4001","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-11-13T21:45:24.513Z"}}]}}