CVE-2021-37531 Command injection in SAP NetWeaver Knowledge Management XML Forms
Authenticated attackers can execute arbitrary OS commands via malicious XSL stylesheets in SAP NetWeaver Knowledge Management, leading to full system compromise.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-37531?
CVE-2021-37531 is a critical command injection vulnerability in SAP NetWeaver Knowledge Management XML Forms, published on 14 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SAP NetWeaver Knowledge Management XML Forms versions - 7.10, 7.11, 7.30, 7.31, 7.40, 7.50, contains an XSLT vulnerability which allows a non-administrative authenticated attacker to craft a malicious XSL stylesheet file containing a script with OS-level commands, copy it into a location to be accessed by the system and then create a file which will trigger the XSLT engine to execute the script contained within the malicious XSL file. This can result in a full compromise of the confidentiality, integrity, and availability of the system.
Weakness: CWE-78
Which versions are affected by CVE-2021-37531?
It affects 1 product.
Products include Sap Netweaver Knowledge Management Xml Forms.
How do I fix CVE-2021-37531?
No fix has been published for CVE-2021-37531 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2021-37531 being exploited?
There is no known exploitation of CVE-2021-37531 in the wild and no public exploit code.
Sources
Also known as GHSA-wjr5-qv82-83cr.