CVE-2021-21475 Path traversal in SAP NetWeaver Master Data Management Server
An unauthorized attacker can exploit insufficient path validation to read arbitrary files on the SAP NetWeaver Master Data Management server, exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21475?
CVE-2021-21475 is a medium-severity path traversal vulnerability in SAP NetWeaver Master Data Management Server, published on 9 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Under specific circumstances SAP Master Data Management, versions - 710, 710.750, allows an unauthorized attacker to exploit insufficient validation of path information provided by users, thus characters representing 'traverse to parent directory' are passed through to the file APIs. Due to this Directory Traversal vulnerability the attacker could read content of arbitrary files on the remote server and expose sensitive data.
Weakness: CWE-22
Which versions are affected by CVE-2021-21475?
It affects 1 product.
Products include Sap Netweaver Master Data Management Server.
How do I fix CVE-2021-21475?
No fix has been published for CVE-2021-21475 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-21475 being exploited?
There is no known exploitation of CVE-2021-21475 in the wild and no public exploit code.
Sources
Also known as GHSA-wg32-9vr9-f572.