Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 17.5%; technical severity is CVSS 10.0.
The Invoker Servlet on SAP NetWeaver Application Server Java platforms, possibly before 7.3, does not require authentication, which allows remote attackers to execute arbitrary code via an HTTP or HTTPS request, as exploited in the wild in 2013 through 2016, aka a "Detour" attack.
Who should care
- Teams operating NetWeaver, Netweaver Application Server Java
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether NetWeaver, Netweaver Application Server Java is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- SAP Security advisory 1445998
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CWE
- CWE-306
- Affected versions
- SAP NetWeaver; SAP Netweaver Application Server Java (End Including 7.30)
- Fixed versions
- No explicit fixed version is currently recorded.
- Published
- 13 May 2016
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 17.5%
- Signal calculated at 73