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Multiple Vulnerabilities in ntpd (April 2015) Affecting Cisco Products

Information

Severity

Severity

Medium

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

4.3

CVSSv2 Vector

CVSSv2 Vector

AV:A/AC:M/Au:N/C:N/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

3 years ago

Summary

Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to bypass authentication controls or to create a denial of service (DoS) condition. On April 7, 2015, NTP.org and US-CERT released a security advisory dealing with two issues regarding bypass of authentication controls. These vulnerabilities are referenced in this document as follows: - CVE-2015-1798: NTP Authentication bypass vulnerability - CVE-2015-1799: NTP Authentication doesn't protect symmetric associations against DoS attacks Cisco has released software updates that address these vulnerabilities. Workarounds that mitigate these vulnerabilities are available.

Detection Method

Detection Method

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

Solution

Solution

See the referenced vendor advisory for a solution.

Common Vulnerabilities and Exposures (CVE)