CVE-2020-27839 Information disclosure in ceph-dashboard
Storing JWTs in localStorage exposes Ceph dashboard users to token theft via XSS, compromising data confidentiality and integrity.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-27839?
CVE-2020-27839 is a medium-severity vulnerability in ceph-dashboard, published on 26 May 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A flaw was found in ceph-dashboard. The JSON Web Token (JWT) used for user authentication is stored by the frontend application in the browser’s localStorage which is potentially vulnerable to attackers via XSS attacks. The highest threat from this vulnerability is to data confidentiality and integrity.
Weakness: CWE-522
Which versions are affected by CVE-2020-27839?
It affects 1 product.
Products include Redhat Ceph.
How do I fix CVE-2020-27839?
Apply the vendor's patch.
Is CVE-2020-27839 being exploited?
There is no known exploitation of CVE-2020-27839 in the wild and no public exploit code.
Other vulnerabilities in ceph-dashboard
Sources
Also known as DEBIAN-CVE-2020-27839, GHSA-2c8x-3ppx-9gj3, UBUNTU-CVE-2020-27839.