CVE-2016-8735KEV · OVERDUE

Apache Tomcat Remote Code Execution Vulnerability

Critical · published April 7, 2017

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 99.8th percentile for exploit probability.

1238
days past CISA
deadline
CVSS v3.1
9.8
EPSS
90%
Percentile
99.8
In the wild
Confirmed
What it is

🚨 If your Apache Tomcat is running an outdated version, you're at risk of a mind-blowing remote code execution vulnerability! 🔥 Think of this vulnerability like leaving your window wide open while you’re away. An attacker can sneak in through the exposed JMX ports, using the JmxRemoteLifecycleListener like an unwelcome guest who knows how to bypass your security measures. This means an attacker could take control of your server, potentially accessing sensitive data or executing any commands they choose. Picture them rummaging through your valuable files, changing configurations, or even unleashing havoc on your systems. Absolutely devastating!

Put simply

Think of this vulnerability like leaving your window wide open while you’re away. An attacker can sneak in through the exposed JMX ports, using the JmxRemoteLifecycleListener like an unwelcome guest who knows how to bypass your security measures. CVE-2016-8735 allows remote code execution due to an unupdated JmxRemoteLifecycleListener in Apache Tomcat versions prior to 6.0.48, 7.0.73, 8.0.39, 8.5.7, and 9.0.0.M12, making it susceptible when JMX ports are accessible.

What to do

This means an attacker could take control of your server, potentially accessing sensitive data or executing any commands they choose. Picture them rummaging through your valuable files, changing configurations, or even unleashing havoc on your systems. Absolutely devastating! To safeguard your systems, upgrade to the latest versions: 6.0.48, 7.0.73, 8.0.39, 8.5.7, or 9.0.0.M12. Make sure to secure your JMX ports and restrict access to prevent unauthorized connections. It’s time to tighten that window! You've got this! With a few quick updates, you’ll be on your way to securing your Tomcat environment. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.90338 · 99.8th percentile
Published
2017-04-07T01:59Z
KEV added
2023-05-12 · due 2023-06-02
Affected products (56)
ProductVersionsFixed in
apache/tomcat< 6.0.486.0.48
apache/tomcat≥ 7.0.0, < 7.0.737.0.73
apache/tomcat≥ 8.0, < 8.0.398.0.39
apache/tomcat≥ 8.5.0, < 8.5.78.5.7
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
apache/tomcatall versions—
canonical/ubuntu_linuxall versions—
netapp/7-mode_transition_toolall versions—
netapp/oncommand_insightall versions—
netapp/oncommand_shiftall versions—
netapp/snap_creator_frameworkall versions—
debian/debian_linuxall versions—
redhat/jboss_enterprise_web_serverall versions—
oracle/agile_engineering_data_managementall versions—
oracle/agile_engineering_data_managementall versions—
oracle/agile_engineering_data_managementall versions—
oracle/agile_product_lifecycle_managementall versions—
oracle/agile_product_lifecycle_managementall versions—
oracle/communications_application_session_controllerall versions—
oracle/communications_application_session_controllerall versions—
oracle/communications_instant_messaging_serverall versions—
oracle/communications_interactive_session_recorderall versions—
oracle/communications_interactive_session_recorderall versions—
oracle/communications_interactive_session_recorderall versions—
oracle/hospitality_guest_accessall versions—
oracle/hospitality_guest_accessall versions—
oracle/micros_relate_crm_softwareall versions—
oracle/micros_relate_crm_softwareall versions—
oracle/micros_retail_xbri_loss_preventionall versions—
oracle/micros_retail_xbri_loss_preventionall versions—
oracle/micros_retail_xbri_loss_preventionall versions—
oracle/micros_retail_xbri_loss_preventionall versions—
oracle/micros_retail_xbri_loss_preventionall versions—
oracle/micros_retail_xbri_loss_preventionall versions—
oracle/mysql_enterprise_monitor≤ 3.2.8.2223—
oracle/mysql_enterprise_monitor≥ 3.3.0, ≤ 3.3.4.3247—
oracle/mysql_enterprise_monitor≥ 3.4.0, ≤ 3.4.2.4181—
oracle/retail_convenience_and_fuel_pos_softwareall versions—
oracle/transportation_managementall versions—
oracle/transportation_managementall versions—
oracle/transportation_managementall versions—
oracle/transportation_managementall versions—
oracle/transportation_managementall versions—
oracle/transportation_managementall versions—
oracle/transportation_managementall versions—
oracle/transportation_managementall versions—
References (73)
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[email protected]https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E · [email protected]https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E · [email protected]https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E · [email protected]https://security.netapp.com/advisory/ntap-20180607-0001/ · [email protected]https://usn.ubuntu.com/4557-1/ · [email protected]https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html · [email protected]https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html · [email protected]http://rhn.redhat.com/errata/RHSA-2017-0457.html · af854a3a-2127-422b-91ae-364da2661108http://seclists.org/oss-sec/2016/q4/502 · af854a3a-2127-422b-91ae-364da2661108http://svn.apache.org/viewvc?view=revision&revision=1767644 · 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af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html · af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94463 · af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1037331 · af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:0455 · af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:0456 · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E · 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af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20180607-0001/ · af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4557-1/ · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html · af854a3a-2127-422b-91ae-364da2661108https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-8735 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 12 MAY 00:00Z
    Added to CISA KEV — remediate by Jun 2
    kev
  • 06 APR 21:00Z
    Remote code execution is possible with Apache Tomcat before 6.0.48, 7.x before 7.0.73, 8.x before 8.0.39, 8.5.x before 8.5.7, and 9.x before 9.0.0.M12 if…
    cvelistv5