CVE-2020-24588
LOW severity · CVSS 3.5 · CWE-327
3.5CVSS LOW
Summary
The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets.
Impact & exploitability
Attack vectorAdjacent
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactNone
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)4%
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2021/05/11/12Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfAdvisory
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdAdvisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuAdvisory
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63Advisory