CVE-2021-21479 Remote Code Execution in SCIMono
Attackers can inject and execute Java expressions in SCIMono, compromising system integrity and availability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-21479?
CVE-2021-21479 is a high-severity code injection vulnerability in SAP SE SCIMono, published on 9 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
In SCIMono before 0.0.19, it is possible for an attacker to inject and execute java expression compromising the availability and integrity of the system.
Weakness: CWE-74
Which versions are affected by CVE-2021-21479?
2 open source packages ship an affected version, including com.sap.scimono:scimono-server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
com.sap.scimono:scimono-server Maven | All versions | 0.0.19 |
com.sap.scimono:scimono-server Maven | All versions | 0.0.19 |
Products include Sap Scimono.
How do I fix CVE-2021-21479?
Upgrade com.sap.scimono:scimono-server to 0.0.19 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-21479 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-21479 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-29q4-gxjq-rx5c.