CVE-2018-0442
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol component of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to retrieve memory contents, which could lead to the…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol component of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to retrieve memory contents, which could lead to the disclosure of confidential information. The vulnerability is due to insufficient condition checks in the part of the code that handles CAPWAP keepalive requests. An attacker could exploit this vulnerability by sending a crafted CAPWAP keepalive packet to a vulnerable Cisco WLC device. A successful exploit could allow the attacker to retrieve the contents of device memory, which could lead to the disclosure of confidential information.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 3.35% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- cisco/wireless lan controller software
- Source
- psirt@cisco.com
References
- http://www.securityfocus.com/bid/105664Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041923Third Party Advisory, VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-memory-leakVendor Advisory
- http://www.securityfocus.com/bid/105664Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041923Third Party Advisory, VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-memory-leakVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.