Vulnerability Name:

CVE-2018-0102 (CCN-137709)

Assigned:2017-11-27
Published:2018-01-17
Updated:2019-10-09
Summary:A vulnerability in the Pong tool of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software attempts to free the same area of memory twice. An attacker could exploit this vulnerability by sending a pong request to an affected device from a location on the network that causes the pong reply packet to egress both a FabricPath port and a non-FabricPath port. An exploit could allow the attacker to cause a dual or quad supervisor virtual port-channel (vPC) to reload. This vulnerability affects the following products when running Cisco NX-OS Software Release 7.2(1)D(1), 7.2(2)D1(1), or 7.2(2)D1(2) with both the Pong and FabricPath features enabled and the FabricPath port is actively monitored via a SPAN session: Cisco Nexus 7000 Series Switches and Cisco Nexus 7700 Series Switches. Cisco Bug IDs: CSCuv98660.
CVSS v3 Severity:7.4 High (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
6.4 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.1 Medium (CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
6.1 Medium (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-415
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-0102

Source: BID
Type: Third Party Advisory, VDB Entry
102728

Source: CCN
Type: BID-102728
Cisco NX-OS Software CVE-2018-0102 Denial of Service Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040219

Source: XF
Type: UNKNOWN
cisco-nxos-cve20180102-dos(137709)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20180117-nx-os
Cisco NX-OS Software Pong Packet Denial of Service Vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-nx-os

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:nx-os:7.2(1)d(1):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:nx-os:7.2(2)d1(1):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:nx-os:7.2(2)d1(2):*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco nx-os 7.2(1)d(1)
    cisco nx-os 7.2(2)d1(1)
    cisco nx-os 7.2(2)d1(2)