Strix
26.1K

CVE-2018-0441

HIGHCVSS 7.4/10EPSS 0.86%

Last modified

CVE-2018-0441 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A vulnerability in the 802.11r Fast Transition feature set of Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a corruption of certain timer mechanisms triggered by specific roaming events. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

Description

A vulnerability in the 802.11r Fast Transition feature set of Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a corruption of certain timer mechanisms triggered by specific roaming events. This corruption will eventually cause a timer crash. An attacker could exploit this vulnerability by sending malicious reassociation events multiple times to the same AP in a short period of time, causing a DoS condition on the affected AP.

Metrics

CVSS 3.0
7.4/10

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS Probability
0.86%

53.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAccess Points8.0\(140.0\)
CiscoAccess Points8.2\(141.0\)
CiscoAccess Points8.2\(151.0\)
CiscoAccess Points8.3\(102.0\)
CiscoAccess Points8.3\(112.0\)
CiscoAccess Points8.3\(114.74\)
CiscoAccess Points15.3\(3\)jd
CiscoAccess Points< 8.3.140.0
CiscoAccess Points>= 8.4, < 8.5.110.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-0441?
A vulnerability in the 802.11r Fast Transition feature set of Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a corruption of certain timer mechanisms triggered by specific roaming events. This corruption will eventually cause a timer crash. An attacker could exploit this vulnerability by sending malicious reassociation events multiple times to the same AP in a short period of time, causing a DoS condition on the affected AP.
How severe is CVE-2018-0441?
CVE-2018-0441 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.
How do I fix CVE-2018-0441?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2018

View all 2018CVEs →

Are you affected by CVE-2018-0441?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST