vulnwire
7.5high

CVE-2018-0442

Cisco Wireless LAN Controller Software Control and Provisioning of Wireless Access Points Protocol Information Disclosure Vulnerability

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
3.3%
percentile 89%
Public exploits
0
none known

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.

CISA SSVC assessment

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
23 mo ago

Exploit prediction (EPSS)

3.35% probability of exploitation in the next 30 days, higher than 89% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD3.17.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Cisco Cisco Wireless LAN Controller (WLC)

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

  • securitytracker.com /id/1041923 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securityfocus.com /bid/105664 · vdb-entry, x_refsource_BID, x_transferred
  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-memory-leak · vendor-advisory, x_refsource_CISCO, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.