CVE-2020-24586 Information

Description

The 802.11 standard that underpins Wi-Fi Protected Access (WPA WPA2 and WPA3) and Wired Equivalent Privacy (WEP) doesn’t require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances when another device sends fragmented frames encrypted using WEP CCMP or GCMP this can be abused to inject arbitrary network packets and/or exfiltrate user data.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Reference

https://www.fragattacks.com https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md http://www.openwall.com/lists/oss-security/2021/05/11/12 https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

3.5