CVE-2017-18876
First published: Fri Jun 19 2020(Updated: )
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can test for the existence of an arbitrary file.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | <4.1.2 | |
| Mattermost | >=4.2.0<4.2.1 | |
| Mattermost | =4.3.0-rc1 | |
| Mattermost | =4.3.0-rc2 | |
| Mattermost | =4.3.0-rc3 | |
| Mattermost | =4.3.0-rc4 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-18876?
CVE-2017-18876 is rated as a moderate severity vulnerability due to its potential impact on file system security.
How do I fix CVE-2017-18876?
To fix CVE-2017-18876, upgrade Mattermost Server to version 4.3.0 or later.
Who is affected by CVE-2017-18876?
CVE-2017-18876 affects Mattermost Server versions prior to 4.3.0, including 4.2.1, and 4.1.2.
What type of vulnerability is CVE-2017-18876?
CVE-2017-18876 is a local file exposure vulnerability that allows system administrators to test for the existence of arbitrary files.
Is local storage for files secure in versions affected by CVE-2017-18876?
Local storage for files is not secure in versions affected by CVE-2017-18876, as it enables potential unauthorized file access.
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/severity
- agent/author
- agent/references
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- agent/type
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- agent/tags
- collector/nvd-index
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- vendor/mattermost
- canonical/mattermost
- version/mattermost/4.2.0
- version/mattermost/4.3.0-rc1
- version/mattermost/4.3.0-rc2
- version/mattermost/4.3.0-rc3
- version/mattermost/4.3.0-rc4