Vulnerability Name:

CVE-2017-3804 (CCN-120939)

Assigned:2016-12-21
Published:2017-01-18
Updated:2019-10-03
Summary:A vulnerability in Intermediate System-to-Intermediate System (IS-IS) protocol packet processing of Cisco Nexus 5000, 6000, and 7000 Series Switches software could allow an unauthenticated, adjacent attacker to cause a reload of the affected device. Switches in the FabricPath domain crash because of an __inst_001__isis_fabricpath hap reset when processing a crafted link-state packet. More Information: CSCvc45002. Known Affected Releases: 7.1(3)N1(2.1) 7.1(3)N1(3.12) 7.3(2)N1(0.296) 8.0(1)S2. Known Fixed Releases: 6.2(18)S11 7.0(3)I5(1.170) 7.0(3)I5(2) 7.1(4)N1(0.4) 7.1(4)N1(1b) 7.1(5)N1(0.986) 7.1(5)N1(1) 7.2(3)D1(0.8) 7.3(2)N1(0.304) 7.3(2)N1(1) 8.0(0.96)S0 8.0(1) 8.0(1)E1 8.0(1)S4 8.3(0)CV(0.788).
CVSS v3 Severity:6.1 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H)
5.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/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): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H)
5.1 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:L/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): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.7 Medium (CVSS v2 Vector: AV:A/AC:M/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
4.3 Medium (CCN CVSS v2 Vector: AV:A/AC:H/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-3804

Source: BID
Type: Third Party Advisory, VDB Entry
95638

Source: CCN
Type: BID-95638
Multiple Cisco Nexus Devices CVE-2017-3804 Denial of Service Vulnerability

Source: SECTRACK
Type: UNKNOWN
1037658

Source: XF
Type: UNKNOWN
cisco-cve20173804-dos(120939)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20170118-nexus
Cisco Nexus 5000, 6000, and 7000 Series Switches Software IS-IS Packet Processing Denial of Service Vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-nexus

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:nx-os:7.1(3)n1(2.1):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:nx-os:7.1(3)n1(3.12):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:nx-os:7.3(2)n1(0.296):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:nx-os:8.0(1)s2:*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:nexus_5000:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:nexus_6001:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:nexus_6004:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:nexus_7000:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco nx-os 7.1(3)n1(2.1)
    cisco nx-os 7.1(3)n1(3.12)
    cisco nx-os 7.3(2)n1(0.296)
    cisco nx-os 8.0(1)s2
    cisco nexus 5000 -
    cisco nexus 6001 -
    cisco nexus 6004 -
    cisco nexus 7000 -