Vulnerability Name:

CVE-2016-1478 (CCN-115799)

Assigned:2016-08-04
Published:2016-08-04
Updated:2017-08-16
Summary:Cisco IOS 15.5(3)S3, 15.6(1)S2, 15.6(2)S1, and 15.6(2)T1 does not properly dequeue invalid NTP packets, which allows remote attackers to cause a denial of service (interface wedge) by sending many crafted NTP packets, aka Bug ID CSCva35619.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
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): High
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2016-1478

Source: CISCO
Type: Vendor Advisory
20160804 Cisco IOS Software Crafted Network Time Protocol Packets Denial of Service Vulnerability

Source: BID
Type: UNKNOWN
92317

Source: CCN
Type: BID-92317
Cisco IOS Software CVE-2016-1478 Remote Denial of Service Vulnerability

Source: SECTRACK
Type: UNKNOWN
1036541

Source: XF
Type: UNKNOWN
cisco-cve20161478-dos(115799)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20160804-wedge
Cisco IOS Software Crafted Network Time Protocol Packets Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios:15.5(3)s3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.6(1)s2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.6(2)s1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.6(2)t1:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:cisco:ios:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco ios 15.5(3)s3
    cisco ios 15.6(1)s2
    cisco ios 15.6(2)s1
    cisco ios 15.6(2)t1
    cisco ios *