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F5 Networks BIG-IP : NTP vulnerability (K16505)

low Nessus Plugin ID 83038

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting the MAC.
(CVE-2015-1798)

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K16505.

See Also

https://support.f5.com/csp/article/K16505

Plugin Details

Severity: Low

ID: 83038

File Name: f5_bigip_SOL16505.nasl

Version: 2.13

Type: local

Published: 4/24/2015

Updated: 3/10/2021

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 1.8

Temporal Score: 1.6

Vector: CVSS2#AV:A/AC:H/Au:N/C:N/I:P/A:N

Vulnerability Information

CPE: cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_application_visibility_and_reporting, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/h:f5:big-ip, cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_application_acceleration_manager

Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 4/23/2015

Vulnerability Publication Date: 4/8/2015

Reference Information

CVE: CVE-2015-1798

BID: 73951