GHSA-67c6-q4j4-hccg
Suggest an improvement- Source
- https://github.com/advisories/GHSA-67c6-q4j4-hccg
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/08/GHSA-67c6-q4j4-hccg/GHSA-67c6-q4j4-hccg.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-67c6-q4j4-hccg
- Aliases
- Published
- 2023-08-16T21:02:52Z
- Modified
- 2024-02-16T08:10:23.110489Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N CVSS Calculator
- Summary
- Flarum vulnerable to LFI and Blind SSRF via Avatar upload
- Details
-
Impact
The Flarum forum software is affected by a vulnerability that allows an attacker to conduct a Blind SSRF attack or disclose any file on the server, even with a basic user account on any Flarum forum. By uploading a file containing a URL and spoofing the MIME type, an attacker can manipulate the application to execute unintended actions. The vulnerability is due to the behavior of the
intervention/imagepackage, which attempts to interpret the supplied file contents as a URL, which then fetches its contents. This allows an attacker to exploit the vulnerability to perform SSRF attacks, disclose local file contents, or conduct a blind oracle attack.Patches
This has been patched in Flarum v1.8.
Workarounds
As a temporary workaround for the SSRF aspect of the vulnerability, one can disable PHP's
allow_url_fopenwhich will prevent the fetching of external files via URLs.Credits
Adam Kues - Assetnote
- Database specific
{ "github_reviewed": true, "nvd_published_at": "2023-08-16T21:15:09Z", "github_reviewed_at": "2023-08-16T21:02:52Z", "severity": "HIGH", "cwe_ids": [ "CWE-918", "CWE-98" ] }- References
Affected packages
Packagist / flarum/core
Package
- Name
- flarum/core
- Purl
- pkg:composer/flarum/core
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed1.8.0
Affected versions
v0.*
v1.*
Packagist / flarum/framework
Package
- Name
- flarum/framework
- Purl
- pkg:composer/flarum/framework
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed1.8.0