Vulnerability Details

Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015

Published: 2016-05-09 16:22:34
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:N/I:P/A:P

Detection Method:
Checks if a vulnerable version is present on the target host.

Recommendations:
See the referenced vendor advisory for a solution.

Summary:
Multiple Cisco products incorporate a version of the ntpd Linux Distribution Package. Versions of this Linux Distribution Package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition or modify the time being advertised by a device acting as a network time protocol (NTP) server. On October 21st, 2015, NTP.org released a security advisory detailing 13 issues regarding multiple DoS vulnerabilities, information disclosure vulnerabilities, and logic issues that may result in an attacker gaining the ability to modify an NTP server's advertised time. The vulnerabilities covered in this document are as follows: - CVE-2015-7691 - Denial of Service AutoKey Malicious Message - CVE-2015-7692 - Denial of Service AutoKey Malicious Message - CVE-2015-7701 - Denial of Service CRYPTO_ASSOC Memory Leak - CVE-2015-7702 - Denial of Service AutoKey Malicious Message - CVE-2015-7703 - Configuration Directive File Overwrite Vulnerability - CVE-2015-7704 - Denial of Service by Spoofed Kiss-o'-Death - CVE-2015-7705 - Denial of Service by Priming the Pump - CVE-2015-7848 - Network Time Protocol ntpd Multiple Integer Overflow Read Access Violations - CVE-2015-7849 - Network Time Protocol Trusted Keys Memory Corruption Vulnerability - CVE-2015-7850 - Network Time Protocol Remote Configuration Denial of Service Vulnerability - CVE-2015-7851 - Network Time Protocol ntpd saveconfig Directory Traversal Vulnerability - CVE-2015-7852 - Network Time Protocol ntpq atoascii Memory Corruption Vulnerability - CVE-2015-7853 - Network Time Protocol Reference Clock Memory Corruption Vulnerability - CVE-2015-7854 - Network Time Protocol Password Length Memory Corruption Vulnerability - CVE-2015-7855 - Denial of Service Long Control Packet Message - CVE-2015-7871 - NAK to the Future: NTP Symmetric Association Authentication Bypass Vulnerability Cisco will release software updates that address these vulnerabilities. Workarounds that mitigate one or more of the vulnerabilities may be available for certain products, please see the individual Cisco Bug IDs for details.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2015-7848
https://nvd.nist.gov/vuln/detail/CVE-2015-7849
https://nvd.nist.gov/vuln/detail/CVE-2015-7850
https://nvd.nist.gov/vuln/detail/CVE-2015-7851
https://nvd.nist.gov/vuln/detail/CVE-2015-7852
https://nvd.nist.gov/vuln/detail/CVE-2015-7853
https://nvd.nist.gov/vuln/detail/CVE-2015-7854
https://nvd.nist.gov/vuln/detail/CVE-2015-7871
https://nvd.nist.gov/vuln/detail/CVE-2015-7704
https://nvd.nist.gov/vuln/detail/CVE-2015-7705
https://nvd.nist.gov/vuln/detail/CVE-2015-7703
https://nvd.nist.gov/vuln/detail/CVE-2015-7701
https://nvd.nist.gov/vuln/detail/CVE-2015-7855
https://nvd.nist.gov/vuln/detail/CVE-2015-7691
https://nvd.nist.gov/vuln/detail/CVE-2015-7692
https://nvd.nist.gov/vuln/detail/CVE-2015-7702

References:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-ntp
http://tools.cisco.com/security/center/viewAlert.x?alertId=41653
http://tools.cisco.com/security/center/viewAlert.x?alertId=41658

Severity
Medium
CVSS Score
6.4
Published
2016-05-09
Modified
2018-10-18
Category
CISCO

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