CVE-2020-4071

CVSS V2 Low 2.1 CVSS V3 Low 2.4
Description
In django-basic-auth-ip-whitelist before 0.3.4, a potential timing attack exists on websites where the basic authentication is used or configured, i.e. BASIC_AUTH_LOGIN and BASIC_AUTH_PASSWORD is set. Currently the string comparison between configured credentials and the ones provided by users is performed through a character-by-character string comparison. This enables a possibility that attacker may time the time it takes the server to validate different usernames and password, and use this knowledge to work out the valid credentials. This attack is understood not to be realistic over the Internet. However, it may be achieved from within local networks where the website is hosted, e.g. from inside a data centre where a website's server is located. Sites protected by IP address whitelisting only are unaffected by this vulnerability. This vulnerability has been fixed on version 0.3.4 of django-basic-auth-ip-whitelist. Update to version 0.3.4 as soon as possible and change basic authentication username and password configured on a Django project using this package. A workaround without upgrading to version 0.3.4 is to stop using basic authentication and use the IP whitelisting component only. It can be achieved by not setting BASIC_AUTH_LOGIN and BASIC_AUTH_PASSWORD in Django project settings.
Overview
  • CVE ID
  • CVE-2020-4071
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-06-24T13:15:11
  • Last Modified Date
  • 2020-07-09T14:11:05
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:django-basic-auth-ip-whitelist_project:django-basic-auth-ip-whitelist:*:*:*:*:*:*:*:* 1 OR 0.3.4
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:P/I:N/A:N
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • Attack Vector
  • PHYSICAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 2.4
  • Base Severity
  • LOW
  • Exploitability Score
  • 0.9
  • Impact Score
  • 1.4
History
Created Old Value New Value Data Type Notes
2022-05-10 16:41:12 Added to TrackCVE
2022-12-04 18:40:24 2020-06-24T13:15Z 2020-06-24T13:15:11 CVE Published Date updated
2022-12-04 18:40:24 2020-07-09T14:11:05 CVE Modified Date updated
2022-12-04 18:40:24 Analyzed Vulnerability Status updated