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ExploitedIn CISA KEVFix available

CVE-2017-12615

Exploitation confirmed. First attested on 2022-03-25 by CISA-ADP, CISA KEV, GCVE · kevintel, GCVE · shadowserver.

  • Published2017-09-19
  • WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2017-09-1913:29CVE publishedNVD
  2. 2022-03-25Listed as exploited by GCVEGCVE
  3. 2022-03-25Exploitation first reportedCISA KEV
  4. 2022-03-25Added to the CISA KEV catalogCISA KEV
  5. 2025-02-0620:59SSVC exploitation set to activeCISA-ADP
  6. 2026-10-2319:23First public proof of conceptPoC-in-GitHub
  7. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-12615?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-12615?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Redhat enterprise linux eus
BranchAffectedFixed in
7.4= 7.4no fix published
7.5= 7.5no fix published
7.6= 7.6no fix published
7.7= 7.7no fix published
Redhat enterprise linux eus compute node
BranchAffectedFixed in
7.4= 7.4no fix published
7.5= 7.5no fix published
7.6= 7.6no fix published
7.7= 7.7no fix published
Redhat enterprise linux for ibm z systems eus
BranchAffectedFixed in
7.4= 7.4_s390xno fix published
7.5= 7.5_s390xno fix published
7.6= 7.6_s390xno fix published
7.7= 7.7_s390xno fix published

19 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • RHSA-2017:3113 Red Hat Product Security99 products fixed

    Red Hat Security Advisory: Red Hat JBoss Web Server security and bug fix update

  • RHSA-2017:3114 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat JBoss Web Server security and bug fix update

Full record on NVD

Fix

  1. CISA’s required action: Apply updates per vendor instructions.due 2022-04-15
  2. Vendor fix Red Hat Product Security RHSA-2017:3113 · 99 productsBefore applying the update, back up your existing Red Hat JBoss Web Server installation (including all applications and configuration files). For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 For the…
  3. Vendor fix Red Hat Product Security RHSA-2017:3114 · 1 productBefore applying the update, back up your existing Red Hat JBoss Web Server installation (including all applications and configuration files). The References section of this erratum contains a download link (you must log in to download the update).
  4. Workaround from the vendor Red Hat Product Security RHSA-2017:3113 · 99 productsEnsure that readonly is set to true (the default) for the DefaultServlet, WebDAV servlet or application context. Block HTTP methods that permit resource modification for untrusted users.

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
19 repositories, unverifiedbreaktoprotect/CVE-2017-12615mefulton/cve-2017-12615zi0Black/POC-CVE-2017-12615-or-CVE-2017-12717wsg00d/cve-2017-12615BeyondCy/CVE-2017-12615
PoC-in-GitHub

CISA Known Exploited Vulnerability

Date Added
2022-03-25
Patch Due Date
2022-04-15
Ransomware Use
Known
Required Action
Apply updates per vendor instructions.

Sources

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2017-09-19
Last Modified
2026-08-06
NVD status
Analyzed

Frequently asked questions

What is CVE-2017-12615?

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.

Is CVE-2017-12615 actively exploited?

Yes. CVE-2017-12615 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-04-15.

What is the CVSS score for CVE-2017-12615?

CVE-2017-12615 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

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