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Fencer Vulns
high 8.1

CVE-2018-11787 json

Improper Authentication in Apache Karaf

published 2018-09-18 8 y ago modified 2026-06-17 4 mo ago also GHSA-cq9c-55r7-455x , EUVD-2019-0185

cvss
8.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

In Apache Karaf version prior to 3.0.9, 4.0.9, 4.1.1, when the webconsole feature is installed in Karaf, it is available at .../system/console and requires authentication to access it. One part of the console is a Gogo shell/console that gives access to the command line console of Karaf via a Web browser, and when navigated to it is available at .../system/console/gogo. Trying to go directly to that URL does require authentication. And optional bundle that some applications use is the Pax Web Extender Whiteboard, it is part of the pax-war feature and perhaps others. When it is installed, the Gogo console becomes available at another URL .../gogo/, and that URL is not secured giving access to the Karaf console to unauthenticated users. A mitigation for the issue is to manually stop/uninstall Gogo plugin bundle that is installed with the webconsole feature, although of course this removes the console from the .../system/console application, not only from the unauthenticated endpoint. One could also stop/uninstall the Pax Web Extender Whiteboard, but other components/applications may require it and so their functionality would be reduced/compromised.

Patch / fix

  • maven org.apache.karaf:apache-karaf 3.0.9, 4.0.9, 4.1.1
  • apache karaf 3.0.9, 4.0.9, 4.1.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-11787 updated cvss 9.4

karaf: Authentication bypass access to Gogo shell in the webconsole

  • Red Hat JBoss A-MQ 6 karaf karaf Red Hat JBoss Fuse 6 karaf karaf
    affected: no fix planned “Out of support scope”
  • Red Hat JBoss Fuse Service Works 6 karaf karaf Red Hat OpenStack Platform 8 (Liberty) opendaylight Red Hat OpenStack Platform 9 (Mitaka) opendaylight Red Hat OpenStack Platform 10 (Newton) opendaylight Red Hat OpenStack Platform 12 (Pike) opendaylight
    affected: no fix planned “Will not fix”
  • Red Hat Fuse 7 karaf karaf Red Hat OpenStack Platform 13 (Queens) opendaylight
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.57% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
GitHub 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.karaf:apache-karaf
<3.0.9
>=4.0.0, <4.0.9
>=4.1.0, <4.1.1
3.0.9
4.0.9
4.1.1

Affected products

  • Apache Software Foundation Apache Karaf

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.