CVE-2020-11980

In Karaf, JMX authentication takes place using JAAS and authorization takes place using ACL files. By default, only an "admin" can actually invoke on an MBean. However there is a vulnerability there for someone who is not an admin, but has a "viewer" role. In the 'etc/jmx.acl.cfg', such as role can call get*. It's possible to authenticate as a viewer role + invokes on the MLet getMBeansFromURL method, which goes off to a remote server to fetch the desired MBean, which is then registered in Karaf. At this point the attack fails as "viewer" doesn't have the permission to invoke on the MBean. Still, it could act as a SSRF style attack and also it essentially allows a "viewer" role to pollute the MBean registry, which is a kind of privilege escalation. The vulnerability is low as it's possible to add a ACL to limit access. Users should update to Apache Karaf 4.2.9 or newer.

• CWE-918

• http://karaf.apache.org/security/cve-2020-11980.txtVendor Advisory
• http://karaf.apache.org/security/cve-2020-11980.txtVendor Advisory

Published

Jun 12, 2020

Last Modified

Jun 17, 2026

Status

Modified

• One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-11975Apache Unomi allows conditions to use OGNL scripting which o…9.8
• CVE-2020-11976By crafting a special URL it is possible to make Wicket deli…7.5
• CVE-2020-11977In Apache Syncope 2.1.X releases prior to 2.1.7, when the Fl…7.2
• CVE-2020-11978An issue was found in Apache Airflow versions 1.10.10 and be…8.8
• CVE-2020-11979As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed th…7.5
• CVE-2020-1198<p>A cross-site-scripting (XSS) vulnerability exists when Mi…7.4
• CVE-2020-11981An issue was found in Apache Airflow versions 1.10.10 and be…9.8
• CVE-2020-11982An issue was found in Apache Airflow versions 1.10.10 and be…9.8
• CVE-2020-11983An issue was found in Apache Airflow versions 1.10.10 and be…5.4
• CVE-2020-11984Apache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info dis…9.8
• CVE-2020-11985IP address spoofing when proxying using mod_remoteip and mod…5.3
• CVE-2020-11986To be able to analyze gradle projects, the build scripts nee…9.8