{"id":"UBUNTU-CVE-2020-25720","details":"A vulnerability was found in Samba where a delegated administrator with permission to create objects in Active Directory can write to all attributes of the newly created object, including security-sensitive attributes, even after the object's creation. This issue occurs because the administrator owns the object due to the lack of an Access Control List (ACL) at the time of creation and later being recognized as the 'creator owner.' The retained significant rights of the delegated administrator may not be well understood, potentially leading to unintended privilege escalation or security risks.","modified":"2026-07-28T16:07:34.385837637Z","published":"2024-11-17T11:15:00Z","upstream":["CVE-2020-25720"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25720"},{"type":"REPORT","url":"https://gitlab.com/samba-team/samba/-/merge_requests/2514"},{"type":"REPORT","url":"https://gitlab.com/samba-team/samba/-/commit/cc64ea24daa649dc8de4a212c7abfbe111095655"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-25720"}],"affected":[{"package":{"name":"samba","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/samba?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:3.6.18-1ubuntu3","2:4.0.10+dfsg-4ubuntu2","2:4.0.13+dfsg-1ubuntu1","2:4.1.3+dfsg-2ubuntu2","2:4.1.3+dfsg-2ubuntu3","2:4.1.3+dfsg-2ubuntu4","2:4.1.3+dfsg-2ubuntu5","2:4.1.6+dfsg-1ubuntu1","2:4.1.6+dfsg-1ubuntu2","2:4.1.6+dfsg-1ubuntu2.14.04.1","2:4.1.6+dfsg-1ubuntu2.14.04.2","2:4.1.6+dfsg-1ubuntu2.14.04.3","2:4.1.6+dfsg-1ubuntu2.14.04.4","2:4.1.6+dfsg-1ubuntu2.14.04.5","2:4.1.6+dfsg-1ubuntu2.14.04.7","2:4.1.6+dfsg-1ubuntu2.14.04.8","2:4.1.6+dfsg-1ubuntu2.14.04.9","2:4.1.6+dfsg-1ubuntu2.14.04.11","2:4.1.6+dfsg-1ubuntu2.14.04.12","2:4.1.6+dfsg-1ubuntu2.14.04.13","2:4.3.8+dfsg-0ubuntu0.14.04.2","2:4.3.9+dfsg-0ubuntu0.14.04.1","2:4.3.9+dfsg-0ubuntu0.14.04.3","2:4.3.11+dfsg-0ubuntu0.14.04.1","2:4.3.11+dfsg-0ubuntu0.14.04.2","2:4.3.11+dfsg-0ubuntu0.14.04.3","2:4.3.11+dfsg-0ubuntu0.14.04.4","2:4.3.11+dfsg-0ubuntu0.14.04.6","2:4.3.11+dfsg-0ubuntu0.14.04.7","2:4.3.11+dfsg-0ubuntu0.14.04.8","2:4.3.11+dfsg-0ubuntu0.14.04.9","2:4.3.11+dfsg-0ubuntu0.14.04.10","2:4.3.11+dfsg-0ubuntu0.14.04.11","2:4.3.11+dfsg-0ubuntu0.14.04.12","2:4.3.11+dfsg-0ubuntu0.14.04.13","2:4.3.11+dfsg-0ubuntu0.14.04.14","2:4.3.11+dfsg-0ubuntu0.14.04.16","2:4.3.11+dfsg-0ubuntu0.14.04.17","2:4.3.11+dfsg-0ubuntu0.14.04.19","2:4.3.11+dfsg-0ubuntu0.14.04.20","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm1","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm2","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm3","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm6","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm9","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm12","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm13","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm14","2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"],"ecosystem_specific":{"binaries":[{"binary_name":"libnss-winbind","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_name":"libpam-smbpass","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_name":"libpam-winbind","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_name":"libparse-pidl-perl","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"libsmbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"libsmbsharemodes0"},{"binary_name":"libwbclient0","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_name":"python-samba","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"registry-tools"},{"binary_name":"samba","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_name":"samba-common","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_name":"samba-common-bin","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_name":"samba-dsdb-modules","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"samba-libs"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15","binary_name":"samba-testsuite"},{"binary_name":"samba-vfs-modules","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_name":"smbclient","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"},{"binary_name":"winbind","binary_version":"2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25720.json"}},{"package":{"name":"samba","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/samba?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:4.1.17+dfsg-4ubuntu2","2:4.1.20+dfsg-1ubuntu1","2:4.1.20+dfsg-1ubuntu2","2:4.1.20+dfsg-1ubuntu3","2:4.1.20+dfsg-1ubuntu5","2:4.3.3+dfsg-1ubuntu1","2:4.3.3+dfsg-1ubuntu2","2:4.3.3+dfsg-1ubuntu3","2:4.3.6+dfsg-1ubuntu1","2:4.3.8+dfsg-0ubuntu1","2:4.3.9+dfsg-0ubuntu0.16.04.1","2:4.3.9+dfsg-0ubuntu0.16.04.2","2:4.3.9+dfsg-0ubuntu0.16.04.3","2:4.3.11+dfsg-0ubuntu0.16.04.1","2:4.3.11+dfsg-0ubuntu0.16.04.3","2:4.3.11+dfsg-0ubuntu0.16.04.5","2:4.3.11+dfsg-0ubuntu0.16.04.6","2:4.3.11+dfsg-0ubuntu0.16.04.7","2:4.3.11+dfsg-0ubuntu0.16.04.8","2:4.3.11+dfsg-0ubuntu0.16.04.9","2: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