Auth bypass in Apache Activemq
CVE-2021-26117
The optional ActiveMQ LDAP login module can be configured to use anonymous access to the LDAP server. In this case, for Apache ActiveMQ Artemis prior to version 2.16.0 and Apache ActiveMQ prior to versions 5.16.1 and 5.15.14, the anonymous context is used to verify a valid users password in error, resulting in no check on the password.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.113 (96.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.113 · newest: 0.113 · change: 0.000
Affected products
- Apache Activemq
- Apache Artemis
- Apache Software Foundation Activemq — versions Apache ActiveMQ Artemis, Apache ActiveMQ
- NetApp Oncommand Workflow Automation
- Oracle Communications Element Manager
- Oracle Communications Session Report Manager
- Oracle Communications Session Route Manager
- Oracle Flexcube Private Banking — versions 12.0.0, 12.1.0
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- mail-archives.apache.org/mod_mbox/activemq-users/202101.mbox/<CAH+vQmMeUEiKN4wY…
- lists.apache.org/thread.html/rffa5cd05d01c4c9853b17f3004d80ea6eb8856c422a8545c5… (mailing-list)
- lists.apache.org/thread.html/re1b98da90a5f2e1c2e2d50e31c12e2578d61fe01c0737f9d0… (mailing-list)
- lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d3… (mailing-list)
- lists.debian.org/debian-lts-announce/2021/03/msg00005.html (mailing-list, Mailing List, Third Party Advisory)
- lists.apache.org/thread.html/r70389648227317bdadcdecbd9f238571a6047469d156bd72b… (mailing-list)
- lists.apache.org/thread.html/r5899ece90bcae5805ad6142fdb05c58595cff19cb2e98cc58… (mailing-list)
- lists.apache.org/thread.html/rec93794f8aeddf8a5f1a643d264b4e66b933f06fd72a38f31… (mailing-list)
- lists.apache.org/thread.html/rd75600cee29cb248d548edcf6338fe296466d63a69e2ed0af… (mailing-list)
- lists.apache.org/thread.html/raea451de09baed76950d6a60cc4bb1b74476c505e03205a3c… (mailing-list)
Frequently asked questions
- What is CVE-2021-26117?
- CVE-2021-26117 is a high-severity vulnerability in Apache Activemq, classified under Improper Authentication. CVSS score: 7.5/10. Published 2021-01-27.
- How severe is CVE-2021-26117?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-26117 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.