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Fencer Intel
medium 5.9

CVE-2020-1741 json

A flaw was found in openshift-ansible.

published 6y ago modified 4mo ago also EUVD-2020-12578

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

A flaw was found in openshift-ansible. OpenShift Container Platform (OCP) 3.11 is too permissive in the way it specified CORS allowed origins during installation. An attacker, able to man-in-the-middle the connection between the user's browser and the openshift console, could use this flaw to perform a phishing attack. The main threat from this vulnerability is data confidentiality.

Patch / fix

  • jenkins openshift 3.11 2.235.2.1597220898-1.el7
  • python-rsa openshift 3.11 4.5-2.el7
  • python2-rsa openshift 3.11 4.5-2.el7
  • jenkins-2-plugins openshift 3.11 3.11.1597310986-1.el7
  • openshift-ansible openshift 3.11 3.11.272-1.git.0.79ab6e9.el7
  • openshift-ansible-test openshift 3.11 3.11.272-1.git.0.79ab6e9.el7
  • openshift-ansible-roles openshift 3.11 3.11.272-1.git.0.79ab6e9.el7
  • openshift-ansible-playbooks openshift 3.11 3.11.272-1.git.0.79ab6e9.el7

red hat advisories RHSA-2020:3541

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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-2020-1741 updated cvss 5.9

openshift-ansible: cors allowed origin allows changing url protocol

  • Red Hat OpenShift Container Platform 3.11 openshift-ansible 3.11.272-1.git.0.79ab6e9.el7, openshift-ansible-test 3.11.272-1.git.0.79ab6e9.el7, openshift-ansible-roles 3.11.272-1.git.0.79ab6e9.el7, openshift-ansible-playbooks 3.11.272-1.git.0.79ab6e9.el7
    fixed: vendor fix RHSA-2020:3541
  • Red Hat OpenShift Container Platform 3.11 python-rsa 4.5-2.el7, python2-rsa 4.5-2.el7, jenkins 2.235.2.1597220898-1.el7, jenkins-2-plugins 3.11.1597310986-1.el7 Red Hat OpenShift Container Platform 4 openshift4/ose-hypershift
    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

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
NVD 2.0 4.0 AV:N/AC:H/Au:N/C:P/I:P/A:N

Affected products

  • Red Hat openshift-ansible

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.