Known exploited vulnerability
CVE-2016-3976
The short answer
CVE-2016-3976 affects n/a n/a and is rated high (CVSS 7.5). CISA added it to the Known Exploited Vulnerabilities catalog on 2021-11-03: attackers are using it, so patch it first.
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.
Weakness: CWE-22.
Severity
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploited (CISA KEV)
Yes, since Nov 3, 2021
Federal due date May 3, 2022
EPSS, next 30 days
47%
Higher than 99% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
What CISA says to do
Apply updates per vendor instructions.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- erpscan.io/advisories/erpscan-16-012/ Third Party Advisory
- erpscan.io/press-center/blog/sap-security-notes-march-2016-review/ Third Party Advisory
- launchpad.support.sap.com/#/notes/2234971 Permissions Required
- www.exploit-db.com/exploits/39996/ ExploitThird Party AdvisoryVDB Entry
- erpscan.io/advisories/erpscan-16-012/ Third Party Advisory
- erpscan.io/press-center/blog/sap-security-notes-march-2016-review/ Third Party Advisory
- launchpad.support.sap.com/#/notes/2234971 Permissions Required
- www.exploit-db.com/exploits/39996/ ExploitThird Party AdvisoryVDB Entry
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-3976 US Government Resource
Questions
Is CVE-2016-3976 being exploited?
Yes. CISA added CVE-2016-3976 to its Known Exploited Vulnerabilities catalog on 2021-11-03, with a federal remediation due date of 2022-05-03.
How do I fix CVE-2016-3976?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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