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Fencer Intel
medium 5.5

CVE-2021-4142 json

The Candlepin component of Red Hat Satellite was affected by an improper authentication flaw.

published 4y ago modified 4mo ago also EUVD-2021-34011

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

The Candlepin component of Red Hat Satellite was affected by an improper authentication flaw. Few factors could allow an attacker to use the SCA (simple content access) certificate for authentication with Candlepin.

Patch / fix

  • foreman satellite utils 6.11, satellite capsule 6.11, satellite 6.11 3.1.1.21-2.el7sat
  • foreman satellite utils 6.11, satellite capsule 6.11, satellite 6.11 3.1.1.21-2.el8sat
  • libsolv satellite capsule 6.11, satellite 6.11 0.7.22-1.el7pc
  • libsolv satellite capsule 6.11, satellite 6.11 0.7.22-1.el8pc
  • candlepin satellite 6.11 4.1.13-1.el7sat
  • candlepin satellite 6.11 4.1.13-1.el8sat
  • satellite satellite utils 6.11, satellite capsule 6.11, satellite 6.11 6.11.0-2.el7sat
  • satellite satellite utils 6.11, satellite capsule 6.11, satellite 6.11 6.11.0-2.el8sat

red hat advisories RHSA-2022:5498RHSA-2022:0790

  • libdb Rocky Linux 8 5.3.28-42.el8_4

rocky linux advisories RLSA-2022:5498

Is CVE-2021-4142 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2021-4142 updated cvss 5.5

Satellite: Allow unintended SCA certificate to authenticate Candlepin

  • Red Hat Satellite 6.10 candlepin 4.0.15-1.el7sat, candlepin-selinux 4.0.15-1.el7sat
    fixed: vendor fix RHSA-2022:0790
  • Red Hat Satellite 6.11 for RHEL 7 satellite 6.11.0-2.el7sat Red Hat Satellite 6.11 for RHEL 8 satellite 6.11.0-2.el8sat
    fixed: vendor fix RHSA-2022:5498
  • Red Hat Satellite 6.10 foreman 2.5.2.19-1.el7sat, satellite 6.10.3-1.el7sat, foreman-cli 2.5.2.19-1.el7sat, foreman-ec2 2.5.2.19-1.el7sat, foreman-gce 2.5.2.19-1.el7sat, satellite-cli 6.10.3-1.el7sat, +22 more Red Hat Satellite 6.11 for RHEL 7 tfm 7.0-1.el7sat, gofer 2.12.5-7.el7sat, katello 4.3.0-3.el7sat, libsolv 0.7.22-1.el7pc, libcomps 0.1.18-1.el7pc, libsolv0 0.6.34-4.el7sat, +637 more Red Hat Satellite 6.11 for RHEL 8 libdb 5.3.28-42.el8_4, katello 4.3.0-3.el8sat, libsolv 0.7.22-1.el8pc, libcomps 0.1.18-1.el8pc, python-idna 3.3-1.el8pc, python-pbr 5.6.0-1.el8pc, +628 more Red Hat Satellite Capsule 6.10 foreman 2.5.2.19-1.el7sat, satellite 6.10.3-1.el7sat, python-pulp-rpm 3.14.12-1.el7pc, python-pulpcore 3.14.12-1.el7pc, python3-pulp-rpm 3.14.12-1.el7pc, python3-pulpcore 3.14.12-1.el7pc, +6 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

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

  • n/a candlepin

Classification

Weakness
  • CWE-639 Authorization Bypass Through User-Controlled Key
  • CWE-287 Improper Authentication

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.