Vulnerability Name:

CVE-2017-6664 (CCN-129444)

Assigned:2017-07-26
Published:2017-07-26
Updated:2019-10-03
Summary:A vulnerability in the Autonomic Networking feature of Cisco IOS XE Software could allow an unauthenticated, remote, autonomic node to access the Autonomic Networking infrastructure of an affected system, after the certificate for the autonomic node has been revoked. This vulnerability affected devices that are running Release 16.x of Cisco IOS XE Software and are configured to use Autonomic Networking. This vulnerability does not affect devices that are running an earlier release of Cisco IOS XE Software or devices that are not configured to use Autonomic Networking. More Information: CSCvd22328. Known Affected Releases: 15.5(1)S3.1 Denali-16.2.1.
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:H/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/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): High
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
6.1 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-295
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2017-6664

Source: BID
Type: Third Party Advisory, VDB Entry
99986

Source: CCN
Type: BID-99986
Cisco IOS XE Software CVE-2017-6664 Certificate Validation Security Bypass Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1038997

Source: XF
Type: UNKNOWN
cisco-cve20176664-sec-bypass(129444)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20170726-anicrl
Cisco IOS XE Software Autonomic Networking Infrastructure Certificate Revocation Vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-anicrl

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios_xe:3.10.8as:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.10.8s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.12.0s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.12.1s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.12.2s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.12.3s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.12.4s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.13.1s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.13.2s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.13.4s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.13.5s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.14.0s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.14.1s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.14.2s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.14.3s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.14.4s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.15.0s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.15.1s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.15.2s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.15.3s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.16.0s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.16.1as:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.16.2as:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.16.2s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.17.0s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.17.1s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.18.0s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.5.1c:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:*

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

    • * Denotes that component is vulnerable
    BACK
    cisco ios xe 3.10.8as
    cisco ios xe 3.10.8s
    cisco ios xe 3.12.0s
    cisco ios xe 3.12.1s
    cisco ios xe 3.12.2s
    cisco ios xe 3.12.3s
    cisco ios xe 3.12.4s
    cisco ios xe 3.13.1s
    cisco ios xe 3.13.2s
    cisco ios xe 3.13.4s
    cisco ios xe 3.13.5s
    cisco ios xe 3.14.0s
    cisco ios xe 3.14.1s
    cisco ios xe 3.14.2s
    cisco ios xe 3.14.3s
    cisco ios xe 3.14.4s
    cisco ios xe 3.15.0s
    cisco ios xe 3.15.1s
    cisco ios xe 3.15.2s
    cisco ios xe 3.15.3s
    cisco ios xe 3.16.0s
    cisco ios xe 3.16.1as
    cisco ios xe 3.16.2as
    cisco ios xe 3.16.2s
    cisco ios xe 3.17.0s
    cisco ios xe 3.17.1s
    cisco ios xe 3.18.0s
    cisco ios xe 16.5.1c
    cisco ios xe 16.6.1
    cisco ios xe software *