Vulnerability Name:

CVE-2017-12229 (CCN-132681)

Assigned:2017-09-27
Published:2017-09-27
Updated:2019-10-09
Summary:A vulnerability in the REST API of the web-based user interface (web UI) of Cisco IOS XE 3.1 through 16.5 could allow an unauthenticated, remote attacker to bypass authentication to the REST API of the web UI of the affected software. The vulnerability is due to insufficient input validation for the REST API of the affected software. An attacker could exploit this vulnerability by sending a malicious API request to an affected device. A successful exploit could allow the attacker to bypass authentication and gain access to the web UI of the affected software. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, if the HTTP Server feature is enabled for the device. The newly redesigned, web-based administration UI was introduced in the Denali 16.2 Release of Cisco IOS XE Software. This vulnerability does not affect the web-based administration UI in earlier releases of Cisco IOS XE Software. Cisco Bug IDs: CSCuz46036.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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): High
Integrity (I): High
Availibility (A): High
10.0 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
8.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:10.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-287
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2017-12229

Source: BID
Type: Third Party Advisory, VDB Entry
101032

Source: CCN
Type: BID-101032
Cisco IOS XE Software CVE-2017-12229 Authentication Bypass Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1039447

Source: XF
Type: UNKNOWN
cisco-ios-cve201712229-sec-bypass(132681)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20170927-restapi
Cisco IOS XE Software Web UI REST API Authentication Bypass Vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-restapi

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios_xe:3.1.3as:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.2.0ja:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.2.1xo:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.4.7asg:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.6.5be:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.8.0ex:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:3.18.3vs:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.1.1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.1.2:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.1.3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.1.3a:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.1.4:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.2.1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.2.2a:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.3.1a:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.5.1a:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios_xe:16.5.1c:*:*:*:*:*:*:*

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

    • * Denotes that component is vulnerable
    BACK
    cisco ios xe 3.1.3as
    cisco ios xe 3.2.0ja
    cisco ios xe 3.2.1xo
    cisco ios xe 3.4.7asg
    cisco ios xe 3.6.5be
    cisco ios xe 3.8.0ex
    cisco ios xe 3.18.3vs
    cisco ios xe 16.1.1
    cisco ios xe 16.1.2
    cisco ios xe 16.1.3
    cisco ios xe 16.1.3a
    cisco ios xe 16.1.4
    cisco ios xe 16.2.1
    cisco ios xe 16.2.2a
    cisco ios xe 16.3.1a
    cisco ios xe 16.5.1a
    cisco ios xe 16.5.1c
    cisco ios xe *