Vulnerability Details : CVE-2018-0250
A vulnerability in Central Web Authentication (CWA) with FlexConnect Access Points (APs) for Cisco Aironet 1560, 1810, 1810w, 1815, 1830, 1850, 2800, and 3800 Series APs could allow an authenticated, adjacent attacker to bypass a configured FlexConnect access control list (ACL). The vulnerability is due to the AP ignoring the ACL download from the client during authentication. An attacker could exploit this vulnerability by connecting to the targeted device with a vulnerable configuration. A successful exploit could allow the attacker to bypass a configured client FlexConnect ACL. This vulnerability affects the following Cisco products if they are running a vulnerable release of Central Web Authentication with FlexConnect Access Points Software: Aironet 1560 Series Access Points, Aironet 1810 Series OfficeExtend Access Points, Aironet 1810w Series Access Points, Aironet 1815 Series Access Points, Aironet 1830 Series Access Points, Aironet 1850 Series Access Points, Aironet 2800 Series Access Points, Aironet 3800 Series Access Points. Note: Central Web Authentication with FlexConnect Access Points was an unsupported configuration until 8.5.100.0. Cisco Bug IDs: CSCve17756.
Products affected by CVE-2018-0250
- cpe:2.3:o:cisco:aironet_access_point_software:8.4\(100.0\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:aironet_access_point_software:8.7\(1.3\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:aironet_access_point_software:8.2\(160.0\):*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-0250
0.26%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-0250
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.7
|
LOW | AV:A/AC:L/Au:S/C:N/I:P/A:N |
5.1
|
2.9
|
NIST | |
4.1
|
MEDIUM | CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N |
2.3
|
1.4
|
NIST |
CWE ids for CVE-2018-0250
-
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2018-0250
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-ap-acl
Cisco Aironet Access Points Central Web Authentication FlexConnect Client ACL Bypass VulnerabilityVendor Advisory
-
http://www.securitytracker.com/id/1040818
Cisco Aironet FlexConnect Access Points Central Web Authentication Flaw Lets Remote Authenticated Users Bypass ACLs on the Target System - SecurityTrackerThird Party Advisory;VDB Entry
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