Synapse unauthenticated writes to the media repository allow planting of problematic content
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| element-hq | synapse | affected |
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No data.
No data available yet.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2024-3472 | Synapse is an open-source Matrix homeserver. Synapse before version 1.106 allows, by design, unauthenticated remote participants to trigger a download and caching of remote media from a remote homeserver to the local media repository. Such content then also becomes available for download from the local homeserver in an unauthenticated way. The implication is that unauthenticated remote adversaries can use this functionality to plant problematic content into the media repository. Synapse 1.106 introduces a partial mitigation in the form of new endpoints which require authentication for media downloads. The unauthenticated endpoints will be frozen in a future release, closing the attack vector. |
Github GHSA |
GHSA-gjgr-7834-rhxr | Synapse's unauthenticated writes to the media repository allow planting of problematic content |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.430% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Matrix
Matrix synapse |
|
| CPEs | cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Matrix
Matrix synapse |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Element-hq
Element-hq synapse |
|
| CPEs | cpe:2.3:a:element-hq:synapse:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Element-hq
Element-hq synapse |
|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Synapse is an open-source Matrix homeserver. Synapse before version 1.106 allows, by design, unauthenticated remote participants to trigger a download and caching of remote media from a remote homeserver to the local media repository. Such content then also becomes available for download from the local homeserver in an unauthenticated way. The implication is that unauthenticated remote adversaries can use this functionality to plant problematic content into the media repository. Synapse 1.106 introduces a partial mitigation in the form of new endpoints which require authentication for media downloads. The unauthenticated endpoints will be frozen in a future release, closing the attack vector. | |
| Title | Synapse unauthenticated writes to the media repository allow planting of problematic content | |
| Weaknesses | CWE-306 | |
| References |
| |
| Metrics |
cvssV3_1
|