CVE-2021-25934 OpenNMS Horizon vulnerable to XSS
Attackers can inject arbitrary scripts via the node-label parameter in OpenNMS, leading to stored XSS and potential session hijacking.
- 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
- None listed
What is CVE-2021-25934?
CVE-2021-25934 is a medium-severity cross-site scripting vulnerability in OpenNMS, published on 25 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
In OpenNMS Horizon, versions opennms-18.0.0-1 through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.7-1 are vulnerable to Stored Cross-Site Scripting, since the function `createRequisitionedNode()` does not perform any validation checks on the input sent to the `node-label` parameter. Due to this flaw an attacker could inject an arbitrary script which will be stored in the database.
Weakness: CWE-79
Which versions are affected by CVE-2021-25934?
2 open source packages ship an affected version, including org.opennms:opennms. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
org.opennms:opennms Maven | From 18.0.0-1 to 27.1.0-1 | None |
org.opennms:opennms Maven | From 18.0.0-1 to 27.1.0-1 | None |
Products include Opennms Horizon, Opennms Meridian.
How do I fix CVE-2021-25934?
No fix has been published for CVE-2021-25934 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-25934 being exploited?
There is no known exploitation of CVE-2021-25934 in the wild and no public exploit code.
Other vulnerabilities in OpenNMS
- CVE-2021-25931 Cross-Site Request Forgery in OpenNMS Horizon
- CVE-2021-3396 OpenNMS Horizon RCE via JEXL2 expression
- CVE-2023-0872 ROLE_REST can be used to escalate to ROLE_ADMIN via /rest/users
- CVE-2023-0870 Form Can Be Manipulated with Cross-Site Request Forgery (CSRF)
- CVE-2020-11886 SQL injection in n/a
Sources
Also known as GHSA-9hhc-cc6c-99hh.