#VU86810 Information disclosure in Ruby on Rails - CVE-2024-26144

Vulnerability identifier: #VU86810

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-26144

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ruby on Rails
Universal components / Libraries / Scripting languages

Vendor: Rails

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the Active Storage send a Set-Cookie header along with the user's session cookie when serving blobs. It also sets Cache-Control to public. Such cookie can be cached certain proxies and lead to information disclosure.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Ruby on Rails: 6.0.0 - 6.0.6.1, 6.1.0 rc2 - 6.1.7.6, 7.0.0 - 7.0.8

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External links
https://github.com/rails/rails/security/advisories/GHSA-8h22-8cf7-hq6g

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.