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CVE-2021-3456

23
FAUCET Score

CVE-2021-3456 describes an improper authorization flaw in the Foreman smart-proxy Salt plugin, affecting theforeman smart_proxy_salt. This vulnerability allows an authenticated local attacker to bypass intended restrictions, enabling them to access and delete limited resources, and potentially cause a denial of service on the Foreman server. Rated 7.1 HIGH, the attack vector is local with low complexity, primarily impacting system integrity and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.1.5CPE matchmatch criteria
cpe:2.3:a:theforeman:smart_proxy_salt:*:*:*:*:*:foreman:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
9.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 35th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2021-3456Moderate

smart_proxy_salt: unauthorized users can execute actions that should be reserved for foreman

Mar 30, 2021

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory