Vulnerabilities > CVE-2020-11037 - Race Condition vulnerability in Torchbox Wagtail 2.8/2.8.1
Attack vector
LOCAL Attack complexity
HIGH Privileges required
LOW Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
In Wagtail before versions 2.7.3 and 2.8.2, a potential timing attack exists on pages or documents that have been protected with a shared password through Wagtail's "Privacy" controls. This password check is performed through a character-by-character string comparison, and so an attacker who is able to measure the time taken by this check to a high degree of accuracy could potentially use timing differences to gain knowledge of the password. This is [understood to be feasible on a local network, but not on the public internet](https://groups.google.com/d/msg/django-developers/iAaq0pvHXuA/fpUuwjK3i2wJ). Privacy settings that restrict access to pages/documents on a per-user or per-group basis (as opposed to a shared password) are unaffected by this vulnerability. This has been patched in 2.7.3, 2.8.2, 2.9.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 5 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Leveraging Race Conditions This attack targets a race condition occurring when multiple processes access and manipulate the same resource concurrently and the outcome of the execution depends on the particular order in which the access takes place. The attacker can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance a race condition can occur while accessing a file, the attacker can trick the system by replacing the original file with his version and cause the system to read the malicious file.
- Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. The typical example is the file access. The attacker can leverage a file access race condition by "running the race", meaning that he would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the attacker could do something such as replace the file and cause an escalation of privilege.
Nessus
| NASL family | FreeBSD Local Security Checks |
| NASL id | FREEBSD_PKG_D5FEAD4F8EFA11EAA5C808002728F74C.NASL |
| description | Wagtail release notes : CVE-2020-11037: Potential timing attack on password-protected private pages This release addresses a potential timing attack on pages or documents that have been protected with a shared password through Wagtail |
| last seen | 2020-05-15 |
| modified | 2020-05-07 |
| plugin id | 136387 |
| published | 2020-05-07 |
| reporter | This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/136387 |
| title | FreeBSD : Wagtail -- potential timing attack vulnerability (d5fead4f-8efa-11ea-a5c8-08002728f74c) |
| code | |
References
- https://github.com/wagtail/wagtail/commit/3c030490ed575bb9cd01dfb3a890477dcaeb2edf
- https://github.com/wagtail/wagtail/commit/b76ab57ee859732b9cf9287d380493ab24061090
- https://github.com/wagtail/wagtail/commit/ba9d424bd1ca5ce1910d3de74f5cc07214fbfb11
- https://github.com/wagtail/wagtail/commit/bac3cd0a26b023e595cf2959aae7da15bb5e4340
- https://github.com/wagtail/wagtail/security/advisories/GHSA-jjjr-3jcw-f8v6
- https://github.com/wagtail/wagtail/security/advisories/GHSA-jjjr-3jcw-f8v6