github - ghsa-54qx-8p8w-xhg8

GHSA-54QX-8P8W-XHG8

Vulnerability from github – Published: 2022-09-16 21:05 – Updated: 2022-09-16 21:05

Summary

SFTPGo vulnerable to recovery codes abuse

Details

Impact

SFTPGo WebAdmin and WebClient support login using TOTP (Time-based One Time Passwords) as a seconday 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 v2.2.0 to v2.3.3 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.

Patches

Fixed in v2.3.4. Recovery codes can now only be generated after enabling two-factor authentication and are deleted after disabling it.

Workarounds

Regenerate recovery codes after enabling two-factor authentication.

References

https://github.com/drakkan/sftpgo/issues/965

Severity ?

8.3 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/drakkan/sftpgo/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2.0"
            },
            {
              "fixed": "2.3.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-36071"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-916"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-09-16T21:05:28Z",
    "nvd_published_at": "2022-09-02T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nSFTPGo WebAdmin and WebClient support login using TOTP (Time-based One Time Passwords) as a seconday 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.\n\nIn SFTPGo versions from v2.2.0 to v2.3.3 recovery codes can be generated before enabling two-factor authentication.\nAn attacker who knows the user\u0027s password could potentially generate some recovery codes and then bypass two-factor authentication after it is enabled on the account at a later time.\n\n### Patches\n\nFixed in v2.3.4.\nRecovery codes can now only be generated after enabling two-factor authentication and are deleted after disabling it.\n\n### Workarounds\n\nRegenerate recovery codes after enabling two-factor authentication.\n\n### References\n\nhttps://github.com/drakkan/sftpgo/issues/965\n",
  "id": "GHSA-54qx-8p8w-xhg8",
  "modified": "2022-09-16T21:05:28Z",
  "published": "2022-09-16T21:05:28Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/drakkan/sftpgo/security/advisories/GHSA-54qx-8p8w-xhg8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36071"
    },
    {
      "type": "WEB",
      "url": "https://github.com/drakkan/sftpgo/issues/965"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/drakkan/sftpgo"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SFTPGo vulnerable to recovery codes abuse"
}

CVE-2022-36071 (GCVE-0-2022-36071)

Vulnerability from cvelistv5 – Published: 2022-09-02 17:15 – Updated: 2025-04-22 17:24

Title

Recovery codes abuse in SFTPGo

Summary

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.

Severity ?

8.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M

References

URL

Tags

	https://github.com/drakkan/sftpgo/security/adviso…	x_refsource_CONFIRM
	https://github.com/drakkan/sftpgo/issues/965	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	drakkan	sftpgo	Affected: >= 2.2.0, < 2.3.4

Show details on NVD website

JSON

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{
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        "metrics": [
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                "role": "CISA Coordinator",
                "timestamp": "2025-04-22T15:42:26.196720Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "versions": [
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      "descriptions": [
        {
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      "metrics": [
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        },
        "affects": {
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              {
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-54QX-8P8W-XHG8

Impact

Patches

Workarounds

References

CVE-2022-36071 (GCVE-0-2022-36071)

Tags

Sightings

Nomenclature