{
  "threat_severity" : "Important",
  "public_date" : "2023-08-31T00:00:00Z",
  "bugzilla" : {
    "description" : "open-vm-tools: SAML token signature bypass",
    "id" : "2236542",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2236542"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-347",
  "details" : [ "A malicious actor that has been granted  Guest Operation Privileges https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html  in a target virtual machine may be able to elevate their privileges if that target virtual machine has been assigned a more privileged  Guest Alias https://vdc-download.vmware.com/vmwb-repository/dcr-public/d1902b0e-d479-46bf-8ac9-cee0e31e8ec0/07ce8dbd-db48-4261-9b8f-c6d3ad8ba472/vim.vm.guest.AliasManager.html .", "An improper signature verification flaw was found in open-vm-tools that may lead to a bypass of SAML token signature. A malicious actor that has been granted Guest Operation Privileges in a target virtual machine may be able to elevate their privileges if that target virtual machine has been assigned a more privileged Guest Alias." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5217",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "open-vm-tools-0:11.0.5-3.el7_9.7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.7 Advanced Update Support",
    "release_date" : "2024-08-13T00:00:00Z",
    "advisory" : "RHSA-2024:5315",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.7",
    "package" : "open-vm-tools-0:10.3.0-2.el7_7.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2023-09-20T00:00:00Z",
    "advisory" : "RHSA-2023:5312",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "open-vm-tools-0:12.1.5-2.el8_8.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5213",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.1",
    "package" : "open-vm-tools-0:10.3.10-3.el8_1.4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Advanced Update Support",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5210",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.2",
    "package" : "open-vm-tools-0:11.0.0-4.el8_2.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Telecommunications Update Service",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5210",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.2",
    "package" : "open-vm-tools-0:11.0.0-4.el8_2.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5210",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.2",
    "package" : "open-vm-tools-0:11.0.0-4.el8_2.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5216",
    "cpe" : "cpe:/a:redhat:rhel_aus:8.4",
    "package" : "open-vm-tools-0:11.2.0-2.el8_4.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Telecommunications Update Service",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5216",
    "cpe" : "cpe:/a:redhat:rhel_tus:8.4",
    "package" : "open-vm-tools-0:11.2.0-2.el8_4.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5216",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.4",
    "package" : "open-vm-tools-0:11.2.0-2.el8_4.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.6 Extended Update Support",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5220",
    "cpe" : "cpe:/a:redhat:rhel_eus:8.6",
    "package" : "open-vm-tools-0:11.3.5-1.el8_6.4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-09-20T00:00:00Z",
    "advisory" : "RHSA-2023:5313",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "open-vm-tools-0:12.1.5-1.el9_2.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.0 Extended Update Support",
    "release_date" : "2023-09-19T00:00:00Z",
    "advisory" : "RHSA-2023:5218",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.0",
    "package" : "open-vm-tools-0:11.3.5-1.el9_0.4"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-20900\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-20900\nhttps://github.com/vmware/open-vm-tools/blob/CVE-2023-20900.patch/CVE-2023-20900.patch" ],
  "name" : "CVE-2023-20900",
  "csaw" : false
}