CVE-2020-24586
What it is
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.
At a glance
- Exploitability
- Can be exploited from the same network segment without logging in, but needs a user to act. Limited direct impact.
- Exploit odds
- 5.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 5.8% in the next 30 days (EPSS).
- Severity: 3.5 LOW (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 5.8% · EPSS, next 30 days
- Record status
- Modified
Affected
- Ieee 802.11
- Debian Linux 9.0
- Linux mac80211
- Arista c-250 Firmware < 10.0.1-31
- Arista c-260 Firmware < 10.0.1-31
- Arista c-230 Firmware < 10.0.1-31
- Arista c-235 Firmware < 10.0.1-31
- Arista c-200 Firmware < 11.0.0-36
Attack profile CVSS 3.1 · 3.5
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2020-24586.md and follow it. Check whether this project is affected by CVE-2020-24586. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- http://www.openwall.com/lists/oss-security/2021/05/11/12
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
- https://www.fragattacks.com
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html
- http://www.openwall.com/lists/oss-security/2021/05/11/12
- https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
- https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
- https://www.fragattacks.com
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html