CVE-2023-32683
CVSS V2 None
CVSS V3 None
Description
Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed or image URL can bypass the `url_preview_url_blacklist` setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the `url_preview_ip_range_blacklist` setting (by default this only allows public IPs) and by the limited information returned to the client: 1. For discovered oEmbed URLs, any non-JSON response or a JSON response which includes non-oEmbed information is discarded. 2. For discovered image URLs, any non-image response is discarded. Systems which have URL preview disabled (via the `url_preview_enabled` setting) or have not configured a `url_preview_url_blacklist` are not affected. This issue has been addressed in version 1.85.0. Users are advised to upgrade. User unable to upgrade may also disable URL previews.
Overview
- CVE ID
- CVE-2023-32683
- Assigner
- GitHub_M
- Vulnerability Status
- PUBLISHED
- Published Version
- 2023-06-06T18:24:30.457Z
- Last Modified Date
- 2023-06-06T18:24:30.457Z
Weakness Enumerations
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/matrix-org/synapse/security/advisories/GHSA-98px-6486-j7qc | x_refsource_CONFIRM |
| https://github.com/matrix-org/synapse/pull/15601 | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6DH5A5YEB5LRIPP32OUW25FCGZFCZU2/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-32683 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32683 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2024-06-25 11:29:34 | Added to TrackCVE |