CVE-2021-26887 - CERT CVE
ID CVE-2021-26887
Sažetak <p>An elevation of privilege vulnerability exists in Microsoft Windows when Folder redirection has been enabled via Group Policy. When folder redirection file server is co-located with Terminal server, an attacker who successfully exploited the vulnerability would be able to begin redirecting another user's personal data to a created folder.</p> <p>To exploit the vulnerability, an attacker can create a new folder under the Folder Redirection root path and create a junction on a newly created User folder. When the new user logs in, Folder Redirection would start redirecting to the folder and copying personal data.</p> <p>This elevation of privilege vulnerability can only be addressed by reconfiguring Folder Redirection with Offline files and restricting permissions, and NOT via a security update for affected Windows Servers. See the <strong>FAQ</strong> section of this CVE for configuration guidance.</p>
Reference
CVSS
Base: 4.6
Impact: 6.4
Exploitability:3.9
Pristup
VektorSloženostAutentikacija
LOCAL LOW NONE
Impact
PovjerljivostCjelovitostDostupnost
PARTIAL PARTIAL PARTIAL
CVSS vektor AV:L/AC:L/Au:N/C:P/I:P/A:P
Zadnje važnije ažuriranje 24-02-2026 - 16:23
Objavljeno 11-03-2021 - 16:15