CVE-2020-11980
mediumPriorität · verfolgen · 26EPSS 0.019 · 79. PerzentilEUUSEPSS · bewertet 2026-10-27
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.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (3)
Betroffene Produkte und Versionsbereiche.
- Maven org.apache.karaf.management:org.apache.karaf.management.server< 4.2.9osvUSpkg:maven/org.apache.karaf.management/org.apache.karaf.management.server
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- GHSA-9jg9-6wm2-x7p5Server-Side Request Forgery in Karaf2022-02-10ghsa · osvUS
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.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (6)
Externe Belege — Patches, Meldungen, Analysen.
- http://karaf.apache.org/security/cve-2020-11980.txtcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-11980cnnvd
- https://packetstormsecurity.com/files/160562/Red-Hat-Security-Advisory-2020-5568-01.htmlcnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.4464/cnnvd
- http://karaf.apache.org/security/cve-2020-11980.txtenisa_euvd
- http://karaf.apache.org/security/cve-2020-11980.txtVendor Advisorynvd
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