CVE-2016-3976

CVSS 7.5 HIGHEPSS 46.6%● KEVCWE-22

Vexday Risk Score

83Fix now

SSVC decision (CISA)

Act

Exploitation + impact → act immediately

CVSS 7.5EPSS 46.6%KEV simPoC públicaNuclei —Metasploit —Patch —

Lifecycle

07 Apr 2016Published on NVD

21 Jun 2016Public PoC

03 Nov 2021Active exploitation (CISA KEV)

Recommendation: Patch as soon as possible — active exploitation confirmed.

In short

A flaw in SAP NetWeaver AS Java allows attackers to read any file on the server by using special path characters (..\) to escape the intended directory. This is dangerous because sensitive files like configuration and credentials could be exposed.

Technical detail

Directory traversal vulnerability in CrashFileDownloadServlet affecting SAP NetWeaver AS Java 7.1–7.5, exploitable via crafted ..\sequences in the fileName parameter. The vulnerability permits unauthenticated remote file access due to insufficient input validation, leading to confidentiality breach of arbitrary system files.

Summary generated and translated by AI from the official description.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

n/a · n/a

public PoCs found — 3

cve_referencepacketstormsecurity.com/files/137528/SAP-NetWeaver-AS-JAVA-7.5-Directory-Traversal.htmlunverified cve_referencewww.exploit-db.com/exploits/39996/unverified exploitdbwww.exploit-db.com/exploits/39996unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

http://packetstormsecurity.com/files/137528/SAP-NetWeaver-AS-JAVA-7.5-Directory-Traversal.html http://seclists.org/fulldisclosure/2016/Jun/40 https://erpscan.io/advisories/erpscan-16-012/https://erpscan.io/press-center/blog/sap-security-notes-march-2016-review/https://launchpad.support.sap.com/#/notes/2234971 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-3976 https://www.exploit-db.com/exploits/39996/