6.5
CVE-2023-38691
- EPSS 0.06%
- Veröffentlicht 04.08.2023 17:15:11
- Zuletzt bearbeitet 21.11.2024 08:14:03
- Quelle security-advisories@github.com
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matrix-appservice-bridge provides an API for setting up bridges. Starting in version 4.0.0 and prior to versions 8.1.2 and 9.0.1, a malicious Matrix server can use a foreign user's MXID in an OpenID exchange, allowing a bad actor to impersonate users when using the provisioning API. The library does not check that the servername part of the `sub` parameter (containing the user's *claimed* MXID) is the the same as the servername we are talking to. A malicious actor could spin up a server on any given domain, respond with a `sub` parameter according to the user they want to act as and use the resulting token to perform provisioning requests. Versions 8.1.2 and 9.0.1 contain a patch. As a workaround, disable the provisioning API.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Matrix ≫ Matrix-appservice-bridge SwPlatformnode.js Version >= 4.0.0 < 8.1.2
Matrix ≫ Matrix-appservice-bridge Version9.0.0 SwPlatformnode.js
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.06% | 0.196 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 6.5 | 2.8 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
|
| security-advisories@github.com | 5 | 3.1 | 1.4 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
|
CWE-287 Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.