CISA KEV · Known exploitedHigh

CVE-2017-12615

Apache Software Foundation Apache Tomcat, tomcat, windows

When running Apache Tomcat 7.0.0 to 7.0.79 on Windows with HTTP PUTs enabled (e.g. via setting the readonly initialisation parameter of the Default to false) it was possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.

CVSS: 8.1
EPSS: 99.6%
CISA KEV: Listed
Published: 2017.09.19

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability99.6%

Technical severityCVSS 8.1

Vulnerability overview

Affected product and versions

Product: Apache Software Foundation Apache Tomcat, tomcat, windows
Affected versions: >= 7.0.0 to 7.0.79, >= 7.0.0 <= 7.0.79, 7.4, 7.6, 7.7, 2.0.0, 3.0.0, 6.0, 7.0, 7.5, 7.0 s390x, 7.4 s390x, 7.5 s390x, 7.6 s390x, 7.7 s390x, 7.0 ppc64, 7.4 ppc64, 7.5 ppc64, 7.6 ppc64, 7.7 ppc64
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.04.15

1
Identify
Confirm that Apache Software Foundation Apache Tomcat, tomcat, windows and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-434
KEV added: 2022.03.25
Ransomware use: 확인됨