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CVE-2021-3457

21
FAUCET Score

CVE-2021-3457 is an improper authorization flaw in the Foreman smart-proxy Shellhooks plugin, affecting theforeman smart_proxy_shell_hooks. This vulnerability allows an authenticated local attacker to perform unauthorized actions, leading to limited resource deletion and denial of service on the Foreman server. With a CVSS score of 6.1 (Medium), the attack requires local access and low privileges, primarily impacting integrity and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.9.2CPE matchmatch criteria
cpe:2.3:a:theforeman:smart_proxy_shell_hooks:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 67th percentile among its peer group of 15,938 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

Vendor Advisories (1)

redhatCVE-2021-3457Moderate

smart_proxy_shellhooks: 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