Detections
Analytics
GLSA-200905-08 : NTP: Remote execution of arbitrary code
medium Nessus Plugin ID 38920
Synopsis
The remote Gentoo host is missing one or more security-related patches.Description
The remote host is affected by the vulnerability described in GLSA-200905-08 (NTP: Remote execution of arbitrary code)Multiple vulnerabilities have been found in the programs included in the NTP package:
Apple Product Security reported a boundary error in the cookedprint() function in ntpq/ntpq.c, possibly leading to a stack-based buffer overflow (CVE-2009-0159).
Chris Ries of CMU reported a boundary error within the crypto_recv() function in ntpd/ntp_crypto.c, possibly leading to a stack-based buffer overflow (CVE-2009-1252).
Impact :
A remote attacker might send a specially crafted package to a machine running ntpd, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the daemon, or a Denial of Service. NOTE: Successful exploitation requires the 'autokey' feature to be enabled. This feature is only available if NTP was built with the 'ssl' USE flag.
Furthermore, a remote attacker could entice a user into connecting to a malicious server using ntpq, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the application, or a Denial of Service.
Workaround :
You can protect against CVE-2009-1252 by disabling the 'ssl' USE flag and recompiling NTP.
Solution
All NTP users should upgrade to the latest version:# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/ntp-4.2.4_p7'
See Also
Plugin Details
Severity: Medium
ID: 38920
File Name: gentoo_GLSA-200905-08.nasl
Version: 1.15
Type: local
Family: Gentoo Local Security Checks
Published: 5/27/2009
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
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:gentoo:linux:ntp, cpe:/o:gentoo:linux
Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list
Exploit Ease: No known exploits are available
Patch Publication Date: 5/26/2009
Reference Information
CVE: CVE-2009-0159, CVE-2009-1252
CWE: 119
GLSA: 200905-08