SFTPGo up to 2.3.3 Two-factor Authentication improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in SFTPGo up to 2.3.3. This impacts an unknown function of the component Two-factor Authentication. Executing a manipulation can lead to improper authentication. This vulnerability is tracked as CVE-2022-36071. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in SFTPGo up to 2.3.3 and classified as critical. This vulnerability affects some unknown functionality of the component Two-factor Authentication. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was disclosed 09/02/2022 as GHSA-54qx-8p8w-xhg8. The advisory is shared for download at github.com. This vulnerability was named CVE-2022-36071 since 07/15/2022. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.3.4 eliminates this vulnerability.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.3
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SFTPGo 2.3.4

Timelineinfo

07/15/2022 🔍
09/02/2022 +49 days 🔍
09/02/2022 +0 days 🔍
09/02/2022 +0 days 🔍

Sourcesinfo

Advisory: GHSA-54qx-8p8w-xhg8
Status: Confirmed

CVE: CVE-2022-36071 (🔍)
GCVE (CVE): GCVE-0-2022-36071
GCVE (VulDB): GCVE-100-207832

Entryinfo

Created: 09/02/2022 22:57
Changes: 09/02/2022 22:57 (50)
Complete: 🔍
Cache ID: 216::103

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