Home/CVE/Apache Tomcat Remote Code Execution Vulnerability
CVE

CVE-2017-12617

Apache Tomcat Remote Code Execution Vulnerability

When running Apache Tomcat versions 9.0.0.M1 to 9.0.0, 8.5.0 to 8.5.22, 8.0.0.RC1 to 8.0.46 and 7.0.0 to 7.0.81 with HTTP PUTs enabled (e.g. via setting the readonly initialisation parameter of the Default servlet 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.

HIGH · CVSS 8.1 ⚠ CISA KEV EPSS 0.9438
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules11 YARA rules0
⬢

Required Remediation

Apply updates per vendor instructions.

◆

Threat Actors Linked

1
actorSea Turtle
⬡

Weakness Classification

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-434Unrestricted Upload of File with Dangerous Type
▤

Affected Products & Versions

28
apache tomcat>= 7.0.0 and < 7.0.82
apache tomcat>= 8.0 and < 8.0.47
apache tomcat>= 8.5.0 and < 8.5.23
apache tomcat>= 9.0.0 and < 9.0.1
canonical ubuntu linuxall versions
oracle agile plmall versions
oracle communications instant messaging serverall versions
oracle endeca information discovery integratorall versions
▤

Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.apache.tomcat.embed:tomcat-embed-core HIGH fixed in 9.0.1
Maven org.apache.tomcat:tomcat-catalina HIGH fixed in 9.0.1
⚠

Public Exploits & PoCs

5
remoteTomcat - Remote Code Execution via JSP Upload Bypass (Metasploit)verified
webappsApache Tomcat < 9.0.1 (Beta) / < 8.5.23 / < 8.0.47 / < 7.0.8 - JSP Upload Bypass / Remote Code Execution (2)verified
nucleiApache Tomcat - Remote Code Executionhigh
pocwww.exploit-db.com · 42966www.exploit-db.com
pocwww.exploit-db.com · 43008www.exploit-db.com
◈

Detection Rules (IDS/IPS)

6
et-openET WEB_SPECIFIC_APPS Apache Tomcat Possible CVE-2017-12617 JSP Upload Bypass Attemptweb-application-attack
et-openET WEB_SPECIFIC_APPS Apache Tomcat Possible CVE-2017-12617 JSP Upload Bypass Attemptweb-application-attack
et-openET WEB_SPECIFIC_APPS Apache Tomcat Possible CVE-2017-12617 JSP Upload Bypass Attemptweb-application-attack
et-openET WEB_SPECIFIC_APPS Apache Tomcat Possible CVE-2017-12617 JSP Upload Bypass Attemptweb-application-attack
et-openET WEB_SPECIFIC_APPS Apache Tomcat Possible CVE-2017-12617 JSP Upload Bypass Attemptweb-application-attack
et-openET WEB_SPECIFIC_APPS Apache Tomcat Possible CVE-2017-12617 JSP Upload Bypass Attemptweb-application-attack
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
◈

Sigma Hunt Rules

11
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumTomcat WebServer Logs Deleted
relatedcriticalAntivirus Password Dumper Detection
relatedcriticalHacktool Execution - Imphash
relatedcriticalHackTool - Rubeus Execution
relatedcriticalPotential Credential Dumping Via LSASS Process Clone
relatedcriticalWCE wceaux.dll Access
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · security@apache.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 Oct 2017 · 01:29 AM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

21
usnUSN-7282-1
suse-csafopenSUSE-SU-2024:11468-1
suse-csafopenSUSE-SU-2024:13441-1
cisaKEV-CVE-2017-12617
suse-csafSUSE-SU-2021:14705-1
🔗

References & Sources

31
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.htmlPatchThird Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlPatchThird Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.htmlPatchThird Party Advisory
http://www.securityfocus.com/bid/100954Broken LinkThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039552Broken LinkThird Party AdvisoryVDB Entry
https://lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba%40%3Cdev.tomcat.apache.org%3EMailing ListPatch
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