Description

@festify/secure-session creates a secure stateless cookie session for Fastify. At the end of the request handling, it will encrypt all data in the session with a secret key and attach the ciphertext as a cookie value with the defined cookie name. After that, the session on the server side is destroyed. When an encrypted cookie with matching session name is provided with subsequent requests, it will decrypt the ciphertext to get the data. The plugin then creates a new session with the data in the ciphertext. Thus theoretically the web instance is still accessing the data from a server-side session, but technically that session is generated solely from a user provided cookie (which is assumed to be non-craftable because it is encrypted with a secret key not known to the user). The issue exists in the session removal process. In the delete function of the code, when the session is deleted, it is marked for deletion. However, if an attacker could gain access to the cookie, they could keep using it forever. Version 7.3.0 contains a patch for the issue. As a workaround, one may include a "last update" field in the session, and treat "old sessions" as expired.

Severity

 

CVSS Version 3.x CVSS Version 2.0

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score:  N/A

NVD assessment not yet provided.

CNA:  GitHub, Inc.

Base Score:  7.4 HIGH

Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings. A CNA provided score within the CVE List has been displayed.

CVSS 2.0 Severity and Metrics:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://github.com/fastify/fastify-secure-session/commit/56d66642ecc633cff0606927601e81cdac361370
https://github.com/fastify/fastify-secure-session/security/advisories/GHSA-9wwp-q7wq-jx35

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-613	Insufficient Session Expiration	GitHub, Inc.

Change History

1 change records found show changes

New CVE Received by NIST 4/10/2024 6:15:07 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		GitHub, Inc. AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Added	CWE		GitHub, Inc. CWE-613
Added	Description		Record truncated, showing 500 of 1171 characters. View Entire Change Record @festify/secure-session creates a secure stateless cookie session for Fastify. At the end of the request handling, it will encrypt all data in the session with a secret key and attach the ciphertext as a cookie value with the defined cookie name. After that, the session on the server side is destroyed. When an encrypted cookie with matching session name is provided with subsequent requests, it will decrypt the ciphertext to get the data. The plugin then creates a new session with the data in the
Added	Reference		GitHub, Inc. https://github.com/fastify/fastify-secure-session/commit/56d66642ecc633cff0606927601e81cdac361370 [No types assigned]
Added	Reference		GitHub, Inc. https://github.com/fastify/fastify-secure-session/security/advisories/GHSA-9wwp-q7wq-jx35 [No types assigned]