Mastodon vulnerable to arbitrary file creation through media attachments
CVE-2023-36460

10CRITICAL

Key Information:

Vendor

Mastodon

Status
Mastodon
Vendor
CVE Published:
6 July 2023

What is CVE-2023-36460?

Mastodon, the open-source social network server, is susceptible to vulnerabilities in its media processing component, which can lead to arbitrary file creation at any location on the server. Attackers can exploit this flaw by uploading specifically crafted media files, enabling them to overwrite files accessible to Mastodon. This poses a significant risk of Denial of Service attacks and can facilitate arbitrary Remote Code Execution. Users are strongly advised to upgrade to the patched versions 3.5.9, 4.0.5, or 4.1.3 to mitigate these security risks.

Affected Version(s)

mastodon >= 3.5.0, < 3.5.9 < 3.5.0, 3.5.9

mastodon >= 4.0.0, < 4.0.5 < 4.0.0, 4.0.5

mastodon >= 4.1.0, < 4.1.3 < 4.1.0, 4.1.3

References

https://github.com/mastodon/mastodon/security/advisories/...
x_refsource_CONFIRM
https://github.com/mastodon/mastodon/commit/dc8f1fbd976ae...
x_refsource_MISC
https://github.com/mastodon/mastodon/releases/tag/v3.5.9
x_refsource_MISC

EPSS Score

34% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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