Vulnerability Name:

CVE-2016-1426 (CCN-114988)

Assigned:2016-07-13
Published:2016-07-13
Updated:2017-09-01
Summary:Cisco IOS XR 5.x through 5.2.5 on NCS 6000 devices allows remote attackers to cause a denial of service (timer consumption and Route Processor reload) via crafted SSH traffic, aka Bug ID CSCux76819.
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
7.5 High (CCN 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 (CCN 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
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
7.8 High (CCN 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
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-399
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2016-1426

Source: CISCO
Type: Vendor Advisory
20160713 Cisco IOS XR for NCS 6000 Packet Timer Leak Denial of Service Vulnerability

Source: BID
Type: UNKNOWN
91748

Source: CCN
Type: BID-91748
Cisco IOS XR CVE-2016-1426 Denial of Service Vulnerability

Source: SECTRACK
Type: UNKNOWN
1036295

Source: XF
Type: UNKNOWN
cisco-iosxr-cve20161426-dos(114988)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20160713-ncs6k
Cisco IOS XR for NCS 6000 Packet Timer Leak Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/h:cisco:network_convergence_system_6000:-:*:*:*:*:*:*:*
  • AND
  • cpe:/o:cisco:ios_xr:5.0.0:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.0.1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.0_base:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.1.0:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.1.1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.1.1.k9sec:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.1.2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.1.3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.2.0:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.2.1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.2.2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.2.3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.2.4:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xr:5.2.5:*:*:*:*:*:*:*

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

  • * Denotes that component is vulnerable
    BACK
    cisco network convergence system 6000 -
    cisco ios xr 5.0.0
    cisco ios xr 5.0.1
    cisco ios xr 5.0_base
    cisco ios xr 5.1.0
    cisco ios xr 5.1.1
    cisco ios xr 5.1.1.k9sec
    cisco ios xr 5.1.2
    cisco ios xr 5.1.3
    cisco ios xr 5.2.0
    cisco ios xr 5.2.1
    cisco ios xr 5.2.2
    cisco ios xr 5.2.3
    cisco ios xr 5.2.4
    cisco ios xr 5.2.5
    cisco ios xr *