Vulnerability CVE-2016-9256 - CERT Civis.Net

Vulnerability Name:

CVE-2016-9256 (CCN-125865)

Assigned:

2016-11-09

Published:

2017-05-09

Updated:

2017-05-16

Summary:

In F5 BIG-IP 12.1.0 through 12.1.2, permissions enforced by iControl can lag behind the actual permissions assigned to a user if the role_map is not reloaded between the time the permissions are changed and the time of the user's next request. This is a race condition that occurs rarely in normal usage; the typical period in which this is possible is limited to at most a few seconds after the permission change.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): High Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

6.0 Medium (CVSS v2 Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2016-9256

Source: BID
Type: Third Party Advisory, VDB Entry
96464

Source: CCN
Type: BID-96464
Multiple F5 BIG-IP Products CVE-2016-9256 Privilege Escalation Vulnerability

Source: XF
Type: UNKNOWN
f5-bigip-cve20169256-priv-esc(125865)

Source: CCN
Type: F5 Security Advisory: K47284724
iControl vulnerability CVE-2016-9256

Source: CONFIRM
Type: Vendor Advisory
https://support.f5.com/csp/article/K47284724

Vulnerable Configuration:

Configuration 1:

cpe:/a:f5:big-ip_local_traffic_manager:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_local_traffic_manager:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_local_traffic_manager:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_local_traffic_manager:12.1.2:*:*:*:*:*:*:*

Configuration 2:

cpe:/a:f5:big-ip_application_acceleration_manager:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_acceleration_manager:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_acceleration_manager:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_acceleration_manager:12.1.2:*:*:*:*:*:*:*

Configuration 3:

cpe:/a:f5:big-ip_advanced_firewall_manager:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_firewall_manager:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_firewall_manager:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_advanced_firewall_manager:12.1.2:*:*:*:*:*:*:*

Configuration 4:

cpe:/a:f5:big-ip_analytics:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_analytics:12.1.2:*:*:*:*:*:*:*

Configuration 5:

cpe:/a:f5:big-ip_access_policy_manager:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_access_policy_manager:12.1.2:*:*:*:*:*:*:*

Configuration 6:

cpe:/a:f5:big-ip_application_security_manager:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_application_security_manager:12.1.2:*:*:*:*:*:*:*

Configuration 7:

cpe:/a:f5:big-ip_domain_name_system:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_domain_name_system:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_domain_name_system:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_domain_name_system:12.1.2:*:*:*:*:*:*:*

Configuration 8:

cpe:/a:f5:big-ip_link_controller:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_link_controller:12.1.2:*:*:*:*:*:*:*

Configuration 9:

cpe:/a:f5:big-ip_policy_enforcement_manager:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_policy_enforcement_manager:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_policy_enforcement_manager:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_policy_enforcement_manager:12.1.2:*:*:*:*:*:*:*

Configuration 10:

cpe:/a:f5:big-ip_websafe:12.0.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_websafe:12.1.0:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_websafe:12.1.1:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip_websafe:12.1.2:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:f5:big-ip:12.1.2:*:*:*:*:*:*:*

OR cpe:/a:f5:big-ip:12.1.0:*:*:*:*:*:*:*

Denotes that component is vulnerable