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CVE-2021-4142

21
FAUCET Score

CVE-2021-4142 describes an improper authentication flaw in the Candlepin component of Red Hat Satellite. This vulnerability could allow a local attacker to authenticate with Candlepin using the Simple Content Access (SCA) certificate, potentially leading to unauthorized access to sensitive information. With a CVSS score of 5.5 (Medium), the attack requires local access and low privileges, but could result in high confidentiality impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.1.0, <= 3.1.28-2CPE matchmatch criteria
cpe:2.3:a:candlepinproject:candlepin:*:*:*:*:*:*:*:*
>= 3.2.0, <= 3.2.21-1CPE matchmatch criteria
cpe:2.3:a:candlepinproject:candlepin:*:*:*:*:*:*:*:*
>= 4.1.0, <= 4.1.8-1CPE matchmatch criteria
cpe:2.3:a:candlepinproject:candlepin:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 36th percentile among its peer group of 15,937 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.10 for RHEL 7Fixed in: candlepin-0:4.0.15-1.el7sat
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.11 for RHEL 7Fixed in: satellite-0:6.11.0-2.el7sat
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.11 for RHEL 8Fixed in: satellite-0:6.11.0-2.el8sat
View patch
redhatvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2021-4142Moderate

Satellite: Allow unintended SCA certificate to authenticate Candlepin

Jan 17, 2022

References

access.redhat.com / security/cve/CVE-2021-4142
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory
github.com / candlepin/candlepin/pull/3197
PatchThird Party Advisory
github.com / candlepin/candlepin/pull/3198
Third Party Advisory
github.com / candlepin/candlepin/pull/3199
PatchThird Party Advisory