CVE-2024-31450

low-risk
Published 2024-04-19

Owncast is an open source, self-hosted, decentralized, single user live video streaming and chat server. The Owncast application exposes an administrator API at the URL /api/admin. The emoji/delete endpoint of said API allows administrators to delete custom emojis, which are saved on disk. The parameter name is taken from the JSON request and directly appended to the filepath that points to the emoji to delete. By using path traversal sequences (../), attackers with administrative privileges can exploit this endpoint to delete arbitrary files on the system, outside of the emoji directory. This vulnerability is fixed in 0.1.3.

Do I need to act?

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0.10% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
2
CVSS 2.7/10 Low
NETWORK / LOW complexity

Affected Products (1)

Owncast

Affected Vendors

Owncast Project

References (8)

Product https://github.com/owncast/owncast/blob/v0.1.2/controllers/admin/emoji.go#L63
Patch https://github.com/owncast/owncast/commit/1b14800c7d7f54be14ed4d130bfe7f48064507...
Release Notes https://github.com/owncast/owncast/releases/tag/v0.1.3
Exploit https://securitylab.github.com/advisories/GHSL-2023-277_Owncast/
Product https://github.com/owncast/owncast/blob/v0.1.2/controllers/admin/emoji.go#L63
Patch https://github.com/owncast/owncast/commit/1b14800c7d7f54be14ed4d130bfe7f48064507...
Release Notes https://github.com/owncast/owncast/releases/tag/v0.1.3
Exploit https://securitylab.github.com/advisories/GHSL-2023-277_Owncast/
19
/ 100
low-risk
Severity 14/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal