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CVE-2021-3344

27
FAUCET Score

CVE-2021-3344 is a high-severity privilege escalation flaw in OpenShift builder versions prior to v0.0.0-20210125201112-7901cb396121, affecting Red Hat OpenShift Container Platform. During the build process, credentials outside the build context are mounted into the container image, allowing an attacker with code execution privileges during build time to reuse these credentials. This can lead to overwriting arbitrary container images in internal registries, escalating privileges, and posing a high threat to data confidentiality, integrity, and system availability. With a CVSS score of 8.8 (HIGH), the vulnerability has a low attack complexity and requires low privileges, but there is no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 2021-01-26CPE matchmatch criteria
cpe:2.3:a:redhat:openshift_builder:*:*:*:*:*:*:*:*
>= 4.5, < 4.5.33CPE matchmatch criteria
cpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*
>= 4.6, < 4.6.16CPE matchmatch criteria
cpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 61st percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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 (9)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.5Fixed in: openshift4/ose-docker-builder:v4.5.0-202102200202.p0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.5Fixed in: openshift4/ose-ironic-hardware-inventory-recorder-rhel8:v4.5.0-202102200050.p0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.5Fixed in: openshift4/ose-ironic-inspector-rhel8:v4.5.0-202102200050.p0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.5Fixed in: openshift4/ose-ironic-ipa-downloader-rhel8:v4.5.0-202102200050.p0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.5Fixed in: openshift4/ose-ironic-machine-os-downloader-rhel8:v4.5.0-202102200050.p0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.5Fixed in: openshift4/ose-ironic-rhel8:v4.5.0-202102200050.p0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.5Fixed in: openshift4/ose-ironic-static-ip-manager-rhel8:v4.5.0-202102200050.p0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.6Fixed in: openshift4/ose-docker-builder:v4.6.0-202101300140.p0
View patch

Vendor Advisories (1)

redhatCVE-2021-3344Important

openshift/builder: privilege escalation during container image builds via mounted secrets

Feb 8, 2021

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchVendor Advisory