Vulnerability Name:

CVE-2021-3457 (CCN-201959)

Assigned:2021-04-11
Published:2021-04-11
Updated:2021-05-20
Summary: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.
CVSS v3 Severity:6.1 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H)
5.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): High
6.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H)
5.3 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): High
CVSS v2 Severity:3.6 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
5.2 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:P/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Complete
Vulnerability Type:CWE-863
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-3457

Source: CCN
Type: Red Hat Bugzilla - Bug 1940990
(CVE-2021-3457) - CVE-2021-3457 smart_proxy_shellhooks: unauthorized users can execute actions that should be reserved for foreman

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1940990

Source: XF
Type: UNKNOWN
foreman-cve20213457-dos(201959)

Source: CCN
Type: smart_proxy_shellhooks GIT Repository
Added authorization and config warning

Vulnerable Configuration:Configuration 1:
  • cpe:/a:theforeman:smart_proxy_shell_hooks:*:*:*:*:*:*:*:* (Version < 0.9.2)

    • * Denotes that component is vulnerable
    BACK
    theforeman smart proxy shell hooks *