CVE-2023-42450
HIGH WAF: High
CVSS 7.5
Published: 2023-09-19
CWE-113 CWE-918
Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 4.2.0-beta1 and prior to version 4.2.0-rc2, by crafting specific input, attackers can inject arbitrary data into HTTP requests issued by Mastodon. This can be used to perform confused deputy attacks if the server configuration includes `ALLOWED_PRIVATE_ADDRESSES` to allow access to local exploitable services. Version 4.2.0-rc2 has a patch for the issue.
WAF Coverage Analysis
HTTP Response Splitting
High WAF Coverage
OWASP: A03:2021 Injection
921xxx - Protocol Attack
Server-Side Request Forgery (SSRF)
Medium WAF Coverage
OWASP: A10:2021 SSRF
934xxx - Node.js / Generic Injection
Affected Software
| Vendor | Product | Version |
|---|---|---|
| joinmastodon | mastodon | 4.2.0 |
| joinmastodon | mastodon | 4.2.0 |
| joinmastodon | mastodon | 4.2.0 |
| joinmastodon | mastodon | 4.2.0 |
References
- github.com (Patch)
- github.com (Vendor Advisory)