Low severity · published May 11, 2021
CVE-2020-24588
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…
3.5
CVSS
3.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.6% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WI
Windows · Microsoft
20h2; 1607; 1803; 1809; 1909; 2004 · source: NVD
1F
1100 Firmware · Cisco
All versions, or not specified · source: NVD
1F
1100-4p Firmware · Cisco
All versions, or not specified · source: NVD
1F
1100-8p Firmware · Cisco
All versions, or not specified · source: NVD
1F
1101-4p Firmware · Cisco
All versions, or not specified · source: NVD
1F
1109-2p Firmware · Cisco
All versions, or not specified · source: NVD
1F
1109-4p Firmware · Cisco
All versions, or not specified · source: NVD
A1
Aironet 1532 Firmware · Cisco
All versions, or not specified · source: NVD
A1
Aironet 1542d Firmware · Cisco
All versions, or not specified · source: NVD
A1
Aironet 1542i Firmware · Cisco
All versions, or not specified · source: NVD
A1
Aironet 1800 Firmware · Cisco
All versions, or not specified · source: NVD
CF
C-100 Firmware · Arista
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-24588
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-24588
Mailing List
http://www.openwall.com/lists/oss-security/2021/05/11/12
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
Third Party Advisory
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
Mailing List
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
Mailing List
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
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