Vulnerability Name:

CCN-95840

Published:2014-08-25
Updated:2014-08-25
Summary:NTP is vulnerable to a denial of service, caused by an error in the XNTPD_OLD and XNTPD implementation. By sending a GET_RESTRICT control message, an attacker could exploit this vulnerability to amplify the original request and cause a Distributed Reflective Denial of Service (DRDoS) attack.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
4.0 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:W/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: NTP Web site
NTP Software Downloads

Source: CCN
Type: Rapid7 Web site
R7-2014-12: More Amplification Vulnerabilities in NTP Allow Even More DRDoS Attacks

Source: XF
Type: UNKNOWN
ntp-getrestrict-dos(95840)

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:ntp:ntp:4.2.7:p25:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    ntp ntp 4.2.7 p25