Server-Side Request Forgery (SSRF) Affecting opendaylight package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.07% (34th percentile)

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  • Snyk IDSNYK-RHEL7-OPENDAYLIGHT-5248222
  • published27 Mar 2023
  • disclosed12 Jun 2020

Introduced: 12 Jun 2020

CVE-2020-11980  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 opendaylight.

NVD Description

Note: Versions mentioned in the description apply only to the upstream opendaylight package and not the opendaylight package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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 Scores

version 3.1