Vulnerabilities > CVE-2019-11546 - Race Condition vulnerability in Gitlab
Attack vector
NETWORK Attack complexity
HIGH Privileges required
LOW Confidentiality impact
NONE Integrity impact
HIGH Availability impact
NONE Summary
An issue was discovered in GitLab Community and Enterprise Edition before 11.8.9, 11.9.x before 11.9.10, and 11.10.x before 11.10.2. It has a Race Condition which could allow users to approve a merge request multiple times and potentially reach the approval count required to merge.
Vulnerable Configurations
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_1138B39E6ABB11E9A685001B217B3468.NASL |
| description | Gitlab reports : Moving an Issue to Private Repo Leaks Project Namespace Notification Emails Sent to Restricted Users Unauthorized Comments on Confidential Issues Merge Request Approval Count Inflation Unsanitized Branch Names on New Merge Request Notification Emails Improper Sanitation of Credentials in Gitaly |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 124374 |
| published | 2019-04-30 |
| reporter | This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/124374 |
| title | FreeBSD : Gitlab -- Multiple vulnerabilities (1138b39e-6abb-11e9-a685-001b217b3468) |
| code | |