Auth bypass in Theforeman Smart Proxy Shell Hooks
CVE-2021-3457
An improper authorization handling flaw was found in Foreman. The Shellhooks plugin for the smart-proxy allows Foreman clients to execute actions that should be limited to the Foreman Server. This flaw allows an authenticated local attacker to access and delete limited resources and also causes a denial of service on the Foreman server. The highest threat from this vulnerability is to integrity and system availability.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.002 (13.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Theforeman Smart Proxy Shell Hooks
- Smart Proxy Shellhooks — versions smart_proxy_shellhooks 0.9.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2021-3457?
- CVE-2021-3457 is a medium-severity vulnerability in Theforeman Smart Proxy Shell Hooks, classified under Incorrect Authorization. CVSS score: 6.1/10. Published 2021-05-12.
- How severe is CVE-2021-3457?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-3457 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.