CVE-2023-39968: Open Redirect Vulnerability in jupyter-server
First published: Mon Aug 28 2023(Updated: )
### Impact Open Redirect Vulnerability. Maliciously crafted login links to known Jupyter Servers can cause successful login or an already logged-in session to be redirected to arbitrary sites, which should be restricted to Jupyter Server-served URLs. ### Patches Upgrade to Jupyter Server 2.7.2 ### Workarounds None. ### References Vulnerability reported by user davwwwx via the [bug bounty program](https://app.intigriti.com/programs/jupyter/jupyter/detail) [sponsored by the European Commission](https://commission.europa.eu/news/european-commissions-open-source-programme-office-starts-bug-bounties-2022-01-19_en) and hosted on the [Intigriti platform](https://www.intigriti.com/). - https://blog.xss.am/2023/08/cve-2023-39968-jupyter-token-leak/
Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jupyter Jupyter Server | <2.7.2 | |
| pip/jupyter-server | <2.7.2 | 2.7.2 |
| <2.7.2 |
Remedy
https://github.com/jupyter-server/jupyter_server/commit/290362593b2ffb23c59f8114d76f77875de4b925
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Reference Links
- https://github.com/jupyter-server/jupyter_server/commit/290362593b2ffb23c59f8114d76f77875de4b925
- https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-r726-vmfq-j9j3
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NRP7DNZYVOIA4ZB3U3ZWKTFZEPYWNGCQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XDKQAWQN6SQTOVACZNXYKEHWQXGG4DOF/
- https://nvd.nist.gov/vuln/detail/CVE-2023-39968
- https://github.com/pypa/advisory-database/tree/main/vulns/jupyter-server/PYSEC-2023-155.yaml
- https://github.com/advisories/GHSA-r726-vmfq-j9j3 (Advisory)
- https://blog.xss.am/2023/08/cve-2023-39968-jupyter-token-leak
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NRP7DNZYVOIA4ZB3U3ZWKTFZEPYWNGCQ
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XDKQAWQN6SQTOVACZNXYKEHWQXGG4DOF
Frequently Asked Questions
What is the impact of CVE-2023-39968?
The impact is an open redirect vulnerability that can redirect a successful login or an already logged-in session to arbitrary sites.
How can I fix CVE-2023-39968?
You can fix CVE-2023-39968 by upgrading to Jupyter Server 2.7.2.
What is the severity of CVE-2023-39968?
The severity of CVE-2023-39968 is medium with a CVSS score of 6.1.
What is the Common Weakness Enumeration (CWE) for CVE-2023-39968?
The CWE for CVE-2023-39968 is CWE-79 (Improper Neutralization of Input During Web Page Generation) and CWE-601 (URL Redirection to Untrusted Site ('Open Redirect')).
Where can I find more information about CVE-2023-39968?
You can find more information about CVE-2023-39968 at the following references: [1] [2] [3].
- collector/nvd-api
- collector/nvd-index
- agent/type
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-r726-vmfq-j9j3
- alias/CVE-2023-39968
- agent/software-canonical-lookup
- agent/remedy
- agent/weakness
- agent/references
- agent/author
- agent/softwarecombine
- collector/nvd-cve
- source/NVD
- collector/github-advisory
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/title
- agent/severity
- agent/tags
- agent/first-publish-date
- agent/event
- vendor/jupyter
- canonical/jupyter jupyter server
- package-manager/pip