Vulnerabilities > CVE-2018-19572 - Race Condition vulnerability in Gitlab
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
GitLab CE 8.17 and later and EE 8.3 and later have a symlink time-of-check-to-time-of-use race condition that would allow unauthorized access to files in the GitLab Pages chroot environment. This is fixed in versions 11.5.1, 11.4.8, and 11.3.11.
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_8A4ABA2DF33E11E89416001B217B3468.NASL |
| description | Gitlab reports : View Names of Private Groups Persistent XSS in Environments SSRF in Prometheus integration Unauthorized Promotion of Milestones Exposure of Confidential Issue Title Persisent XSS in Markdown Fields via Mermaid Script Persistent XSS in Markdown Fields via Unrecognized HTML Tags Symlink Race Condition in Pages Unauthorized Changes by Guest User in Issues Unauthorized Comments on Locked Issues Improper Enforcement of Token Scope CRLF Injection in Project Mirroring XSS in OAuth Authorization SSRF in Webhooks Send Email on Email Address Change Workhorse Logs Contained Tokens Unauthorized Publishing of Draft Comments Guest Can Set Weight of a New Issue Disclosure of Private Group |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 119271 |
| published | 2018-11-29 |
| reporter | This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/119271 |
| title | FreeBSD : Gitlab -- Multiple vulnerabilities (8a4aba2d-f33e-11e8-9416-001b217b3468) |
| code | |