SAP · NetWeaver
CVE-2016-3976
SAP NetWeaver Directory Traversal Vulnerability
What it is
Directory traversal vulnerability in SAP NetWeaver AS Java 7.1 through 7.5 allows remote attackers to read arbitrary files via a ..\ (dot dot backslash) in the fileName parameter to CrashFileDownloadServlet, aka SAP Security Note 2234971.
CISA: SAP NetWeaver Application Server Java Platforms contains a directory traversal vulnerability via a ..\ (dot dot backslash) in the fileName parameter to CrashFileDownloadServlet. This allows remote attackers to read files.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: May 3, 2022
- Added to the CISA list
- November 3, 2021
- Published
- April 7, 2016
- Severity
- High 7.5 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 47% in the top 1.2% of all known vulnerabilities
- Weakness
- CWE-22
- More details
- NVD · CVE.org · CISA
All references (6)
- https://erpscan.io/press-center/blog/sap-security-notes-march-2016-review/
- http://seclists.org/fulldisclosure/2016/Jun/40
- http://packetstormsecurity.com/files/137528/SAP-NetWeaver-AS-JAVA-7.5-Directory-Traversal.html
- https://erpscan.io/advisories/erpscan-16-012/
- https://www.exploit-db.com/exploits/39996/
- https://launchpad.support.sap.com/#/notes/2234971
More exploited flaws from SAP
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| May 15, 2025 | Deserialization | NetWeaver | Critical 9.1 | 13% |
| Apr 29, 2025 | Unrestricted File Upload | NetWeaver | Critical 10.0 | 99.5% |
| Mar 19, 2025 | Directory Traversal | NetWeaver | High 7.5 | 95% |
| Jun 9, 2022 | SQL Injection | NetWeaver | Critical 9.8 | 72% |
| Jun 9, 2022 | Information Disclosure | NetWeaver | Medium 5.3 | 52% |
| Jun 9, 2022 | Unrestricted File Upload | NetWeaver | Critical 9.9 | 37% |
| Nov 3, 2021 | Remote Code Execution | NetWeaver | Critical 10.0 | 18% |
| Nov 3, 2021 | XML External Entity (XXE) | NetWeaver | Medium 6.5 | 24% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.