Skip to content
Fencer Intel
medium 4.3

CVE-2020-2255 json

Missing permission check in Blue Ocean Plugin

published 6y ago modified 4mo ago also GHSA-vc7g-4269-f7hw , EUVD-2022-5335

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

A missing permission check in Jenkins Blue Ocean Plugin 1.23.2 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL.

Patch / fix

  • maven io.jenkins.blueocean:blueocean 1.23.3
  • Jenkins project Jenkins Blue Ocean Plugin 1.19.2
  • runc openshift 4.6 1.0.0-81.rhaos4.6.git5b757d4.el7
  • runc openshift 4.6 1.0.0-81.rhaos4.6.git5b757d4.el8
  • podman openshift 4.6 1.9.3-3.rhaos4.6.el8
  • skopeo openshift 4.6 1:1.1.1-2.rhaos4.6.el8
  • podman-tests openshift 4.6 1.9.3-3.rhaos4.6.el8
  • skopeo-tests openshift 4.6 1:1.1.1-2.rhaos4.6.el8
  • podman-docker openshift 4.6 1.9.3-3.rhaos4.6.el8
  • podman-remote openshift 4.6 1.9.3-3.rhaos4.6.el8

red hat advisories RHSA-2020:4297RHSA-2020:5102

Is CVE-2020-2255 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2020-2255 updated cvss 4.3

jenkins-2-plugins/blueocean: Blue Ocean Plugin does not perform permission checks in several HTTP endpoints implementing connection tests.

  • Red Hat OpenShift Container Platform 3.11 jenkins-2-plugins 3.11.1603460090-1.el7
    fixed: vendor fix RHSA-2020:5102
  • Red Hat OpenShift Container Platform 4.6 jenkins-2-plugins 4.6.1601368321-1.el8
    fixed: vendor fix RHSA-2020:4297
  • Red Hat OpenShift Container Platform 4.6 podman 1.9.3-3.rhaos4.6.el8, skopeo 1.1.1-2.rhaos4.6.el8, podman-tests 1.9.3-3.rhaos4.6.el8, skopeo-tests 1.1.1-2.rhaos4.6.el8, podman-docker 1.9.3-3.rhaos4.6.el8, podman-remote 1.9.3-3.rhaos4.6.el8, +7 more
    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

0.87% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:P/A:N
GitHub 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
maven io.jenkins.blueocean:blueocean
<1.23.3
1.23.3

Affected products

  • Jenkins project Jenkins Blue Ocean Plugin

Classification

Weakness

References

Sources

Fencer Intel 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.