CVE-2020-11707

An issue was discovered in ProVide (formerly zFTPServer) through 13.1. It doesn't enforce permission over Windows Symlinks or Junctions. As a result, a low-privileged user (non-admin) can craft a Junction Link in a directory he has full control of, breaking out of the sandbox.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.provideserver.com/security/	Vendor Advisory
https://github.com/belong2yourself/vulnerabilities/tree/master/ProVide/Sandbox%20Escape%20via%20Symlink%20or%20Junction	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:provideserver:provide_ftp_server:*:*:*:*:*:windows:*:*

Information

Published : 2020-04-11 20:15

Updated : 2021-07-21 04:39

NVD link : CVE-2020-11707

Mitre link : CVE-2020-11707

JSON object : View

CWE

CWE-863

Incorrect Authorization

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Products Affected

provideserver

provide_ftp_server

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