CVE-2024-25623
highPriorität · verfolgen · 31EPSS 0.005 · 43. PerzentilEUUSEPSS · bewertet 2026-10-27
Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn't check that the response from the remote server has a `Content-Type` header value of the Activity Streams media type, which allows a threat actor to upload a crafted Activity Streams document to a remote server and make a Mastodon server fetch it, if the remote server accepts arbitrary user uploads. The vulnerability allows a threat actor to impersonate an account on a remote server that satisfies all of the following properties: allows the attacker to register an account; accepts arbitrary user-uploaded documents and places them on the same domain as the ActivityPub actors; and serves user-uploaded document in response to requests with an `Accept` header value of the Activity Streams media type. Versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19 contain a fix for this issue.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (13)
Betroffene Produkte und Versionsbereiche.
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- BIT-mastodon-2024-25623Lack of media type verification of Activity Streams objects allows impersonation of remote accounts2024-03-31vendor · osvUS
Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn't check that the response from the remote server has a `Content-Type` header value of the Activity Streams media type, which allows a threat actor to upload a crafted Activity Streams document to a remote server and make a Mastodon server fetch it, if the remote server accepts arbitrary user uploads. The vulnerability allows a threat actor to impersonate an account on a remote server that satisfies all of the following properties: allows the attacker to register an account; accepts arbitrary user-uploaded documents and places them on the same domain as the ActivityPub actors; and serves user-uploaded document in response to requests with an `Accept` header value of the Activity Streams media type. Versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19 contain a fix for this issue.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (7)
Externe Belege — Patches, Meldungen, Analysen.
- https://cxsecurity.com/cveshow/CVE-2024-25623/cnnvd
- https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022cnnvd
- https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36cnnvd
- https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022enisa_euvd
- https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36enisa_euvd
- https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022Patchnvd
- https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36Vendor Advisorynvd
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