CVE-2022-36071

HIGH
Published Sep 2, 20223y ago · Modified Jun 17, 20262w ago
8.1 CVSS 3.1
High
Find Similar
Published Sep 2, 2022 3y ago
Last Modified Jun 17, 2026 2w ago

Description

SFTPGo is configurable SFTP server with optional HTTP/S, FTP/S and WebDAV support. SFTPGo WebAdmin and WebClient support login using TOTP (Time-based One Time Passwords) as a secondary authentication factor. Because TOTPs are often configured on mobile devices that can be lost, stolen or damaged, SFTPGo also supports recovery codes. These are a set of one time use codes that can be used instead of the TOTP. In SFTPGo versions from version 2.2.0 to 2.3.3 recovery codes can be generated before enabling two-factor authentication. An attacker who knows the user's password could potentially generate some recovery codes and then bypass two-factor authentication after it is enabled on the account at a later time. This issue has been fixed in version 2.3.4. Recovery codes can now only be generated after enabling two-factor authentication and are deleted after disabling it.

CVSS Details

Base Score
8.1
Exploitability
2.8
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-287 Improper Authentication Authentication
CWE-916

Affected Products 1

VendorProductVersionRange
sftpgo_projectsftpgo*≥2.2.0  –  <2.3.4

References 2

  • github.com https://github.com/drakkan/sftpgo/issues/965
    ExploitIssue TrackingPatchThird Party Advisory
  • github.com https://github.com/drakkan/sftpgo/security/advisories/GHSA-54qx-8p8w-xhg8
    MitigationThird Party Advisory

Remediation

  • github.com https://github.com/drakkan/sftpgo/issues/965
    ExploitIssue TrackingPatchThird Party Advisory