GHSA-54qx-8p8w-xhg8

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    GHSA-54qx-8p8w-xhg8

    Published: 16 Sept 2022Last Modified: 21 Aug 2024

    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

    References: https://github.com/drakkan/sftpgo/security/advisories/GHSA-54qx-8p8w-xhg8, https://nvd.nist.gov/vuln/detail/CVE-2022-36071, https://github.com/drakkan/sftpgo/issues/965, https://github.com/drakkan/sftpgo

    Affected packages

    Package

    Name: github.com/drakkan/sftpgo/v2

    Purl: pkg:golang/github.com/drakkan/sftpgo/v2

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 2.2.0
    Fixed -2.3.4

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-54qx-8p8w-xhg8 | CVE-DB