security-advisories/server/nc-sa-2020-012.json

{
   "Title": "Improper permission preservation on reshares",
   "Timestamp": 1561593600,
   "Risk": 2,
   "CVSS3": {
      "score": 6.4,
      "vector": "AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H"
   },
   "CWE": {
      "id": 281,
      "name": "Improper Preservation of Permissions"
   },
   "HackerOne": 619484,
   "Affected":[
      {
         "Version":"16.0.2",
         "CVE":"CVE-2019-15621",
         "Operator":"<"
      },
      {
         "Version":"15.0.9",
         "CVE":"CVE-2019-15621",
         "Operator":"<"
      },
      {
         "Version":"14.0.13",
         "CVE":"CVE-2019-15621",
         "Operator":"<"
      }
   ],
   "Description":"Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link.",
   "ActionTaken": "The error has been fixed.",
   "Acknowledgment":[
      {
         "Name": "Phil Davis",
         "Mail": "phil@jankaritech.com",
         "Company": "JankariTech Pvt Ltd",
         "Website": "https://jankaritech.com",
         "Reason": "Vulnerability discovery and disclosure."
      }
   ],
   "Resolution": "It is recommended that the Nextcloud Server is upgraded to 16.0.2."
}