Detections
Analytics
F5 Networks BIG-IP : NTP vulnerability (K17525)
critical Nessus Plugin ID 91314
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Synopsis
The remote device is missing a vendor-supplied security patch.Description
The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative input value. (CVE-2015-7853)Impact
Running a custom refclock driver in ntpd could overflow a data buffer under certain conditions. Running a custom installed refclock driver is not a supported configuration in F5 products.
Solution
Upgrade to one of the non-vulnerable versions listed in the F5 Solution K17525.See Also
Plugin Details
Severity: Critical
ID: 91314
File Name: f5_bigip_SOL17525.nasl
Version: 2.11
Type: local
Published: 5/25/2016
Updated: 3/9/2020
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_application_acceleration_manager, cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_application_visibility_and_reporting, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/a:f5:big-ip_wan_optimization_manager, cpe:/a:f5:big-ip_webaccelerator, cpe:/h:f5:big-ip, cpe:/h:f5:big-ip_protocol_security_manager
Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version
Exploit Ease: No known exploits are available
Patch Publication Date: 11/2/2015
Vulnerability Publication Date: 8/7/2017
Reference Information
CVE: CVE-2015-7853