CVE-2021-21376 Information Exposure in OMERO.web
OMERO.web exposes sensitive user information such as ID, name, and group membership on main webclient pages, allowing attackers to gather user data.
- 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-2021-21376?
CVE-2021-21376 is a medium-severity vulnerability in omero-web, published on 23 Mar 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
OMERO.web is open source Django-based software for managing microscopy imaging. OMERO.web before version 5.9.0 loads various information about the current user such as their id, name and the groups they are in, and these are available on the main webclient pages. This represents an information exposure vulnerability. Some additional information being loaded is not used by the webclient and is being removed in this release. This is fixed in version 5.9.0.
Weakness: CWE-200
Which versions are affected by CVE-2021-21376?
3 open source packages ship an affected version, including omero-web. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
omero-web PyPI | All versions | 5.9.0 |
omero-web PyPI | All versions | 5.9.0 |
omero-web PyPI | All versions | 5.9.0 |
Products include Openmicroscopy Omero.web.
How do I fix CVE-2021-21376?
Upgrade omero-web to 5.9.0 or later.
Is CVE-2021-21376 being exploited?
There is no known exploitation of CVE-2021-21376 in the wild and no public exploit code.
Other vulnerabilities in omero-web
Sources
Also known as GHSA-gfp2-w5jm-955q, PYSEC-2021-31.