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It is possible for a user with two different accounts to bypass multifactor authentication

Low
ChrisMacNaughton published GHSA-jw2v-333v-8m78 Nov 22, 2022

Package

bundler EyeDP (RubyGems)

Affected versions

<1.0.9

Patched versions

1.0.9

Description

Impact

  • it requires to know 2 valid login+password (in my case, both have 2FA configured
  • I connect to https://eyedp.example.com/users/sign_in and use one of my accounts; it then asks me for 2FA, which I don't enter
  • I then go to my URL bar and hit Enter again (in order to load this same page again, but not using the "reload" button)
  • the login+password screen appears again; I enter my other credentials. EyeDP accepts my login without asking me for 2FA.

Patches

This has been resolved on both the main branch as well as the v1.0.9 tag

Workarounds

None, all users should upgrade

More info

Identified by: KheOps

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:N

CVE ID

No known CVE

Weaknesses

No CWEs