CVE-2020-26215: Open redirect in Jupyter Notebook
Impact What kind of vulnerability is it? Who is impacted?
Open redirect vulnerability - a maliciously crafted link to a notebook server could redirect the browser to a different website.
All notebook servers are technically affected, however, these maliciously crafted links can only be reasonably made for known notebook server hosts. A link to your notebook server may appear safe, but ultimately redirect to a spoofed server on the public internet.
Patches
Has the problem been patched? What versions should users upgrade to?
Patched in notebook 6.1.5
References
OWASP page on open redirects
For more information
If you have any questions or comments about this advisory, or vulnerabilities to report, please email our security list security@ipython.org.
Credit: zhuonan li of Alibaba Application Security Team
Other sources
Jupyter Notebook before version 6.1.5 has an Open redirect vulnerability. A maliciously crafted link to a notebook server could redirect the browser to a different website. All notebook servers are technically affected, however, these maliciously crafted links can only be reasonably made for known notebook server hosts. A link to your notebook server may appear safe, but ultimately redirect to a spoofed server on the public internet. The issue is patched in version 6.1.5.
Jupyter Notebook could allow a remote attacker to conduct phishing attacks, caused by an open redirect vulnerability. An attacker could exploit this vulnerability using a specially-crafted URL to redirect a victim to arbitrary Web sites.
— IBM
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the vulnerability ID for this Jupyter Notebook vulnerability?
The vulnerability ID for this Jupyter Notebook vulnerability is CVE-2020-26215.
What is the impact of CVE-2020-26215?
CVE-2020-26215 could allow a remote attacker to conduct phishing attacks by exploiting an open redirect vulnerability, potentially redirecting victims to arbitrary websites.
How severe is CVE-2020-26215?
CVE-2020-26215 has a severity rating of 7.4, which is considered high.
How can an attacker exploit CVE-2020-26215?
An attacker can exploit CVE-2020-26215 by using a specially-crafted URL to redirect a victim to arbitrary websites.
Is there a fix available for CVE-2020-26215?
At the moment, there is no official fix available for CVE-2020-26215, so it is recommended to stay updated with the latest security patches and follow best practices to mitigate the risk.