Detections
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CentOS 3 : ntp (CESA-2009:1651)
medium Nessus Plugin ID 43072
Synopsis
The remote CentOS host is missing a security update.Description
An updated ntp package that fixes two security issues is now available for Red Hat Enterprise Linux 3.This update has been rated as having moderate security impact by the Red Hat Security Response Team.
The Network Time Protocol (NTP) is used to synchronize a computer's time with a referenced time source.
Robin Park and Dmitri Vinokurov discovered a flaw in the way ntpd handled certain malformed NTP packets. ntpd logged information about all such packets and replied with an NTP packet that was treated as malformed when received by another ntpd. A remote attacker could use this flaw to create an NTP packet reply loop between two ntpd servers via a malformed packet with a spoofed source IP address and port, causing ntpd on those servers to use excessive amounts of CPU time and fill disk space with log messages. (CVE-2009-3563)
A buffer overflow flaw was found in the ntpq diagnostic command. A malicious, remote server could send a specially crafted reply to an ntpq request that could crash ntpq or, potentially, execute arbitrary code with the privileges of the user running the ntpq command.
(CVE-2009-0159)
All ntp users are advised to upgrade to this updated package, which contains backported patches to resolve these issues. After installing the update, the ntpd daemon will restart automatically.
Solution
Update the affected ntp package.See Also
Plugin Details
Severity: Medium
ID: 43072
File Name: centos_RHSA-2009-1651.nasl
Version: 1.19
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 12/9/2009
Updated: 1/4/2021
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.5
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: p-cpe:/a:centos:centos:ntp, cpe:/o:centos:centos:3
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 12/8/2009
Vulnerability Publication Date: 4/14/2009
Reference Information
CVE: CVE-2009-0159, CVE-2009-3563
BID: 34481