CVE Vulnerability

CVE-2020-26299

ftp-srv is an open-source FTP server designed to be simple yet configurable. In ftp-srv before version 4.4.0 there is a path-traversal vulnerability. Clients of FTP servers utilizing ftp-srv hosted on Windows machines can escape the FTP user's defined root folder using the expected FTP commands, for example, CWD and UPDR. When windows separators exist within the path (``), `path.resolve` leaves the upper pointers intact and allows the user to move beyond the root folder defined for that user. We did not take that into account when creating the path resolve function. The issue is patched in version 4.4.0 (commit 457b859450a37cba10ff3c431eb4aa67771122e3).

5.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

9.6 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.1 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/autovance/ftp-srv/security/advisories/GHSA-pmw4-jgxx-pcq9 Exploit Third Party Advisory
https://github.com/autovance/ftp-srv/commit/457b859450a37cba10ff3c431eb4aa67771122e3 Patch Third Party Advisory
https://www.npmjs.com/package/ftp-srv Product Third Party Advisory
https://github.com/autovance/ftp-srv/issues/167 Exploit Patch
https://github.com/autovance/ftp-srv/issues/225 Exploit Third Party Advisory
https://github.com/autovance/ftp-srv/pull/224 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:ftp-srv_project:ftp-srv:*:*:*:*:*:node.js:*:*
Information

Published : 2021-02-10 06:15

Updated : 2021-02-19 05:27

NVD link : CVE-2020-26299

Mitre link : CVE-2020-26299

Products Affected
No products.
CWE
CWE-22