Vulnerability Details : CVE-2020-26142
An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat fragmented frames as full frames. An adversary can abuse this to inject arbitrary network packets, independent of the network configuration.
Products affected by CVE-2020-26142
- cpe:2.3:o:openbsd:openbsd:6.6:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26142
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26142
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.6
|
LOW | AV:N/AC:H/Au:N/C:N/I:P/A:N |
4.9
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N |
1.6
|
3.6
|
NIST |
CWE ids for CVE-2020-26142
-
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-26142
-
https://www.fragattacks.com
FragAttacks: Security flaws in all Wi-Fi devicesThird Party Advisory
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021Third Party Advisory
-
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
fragattacks/SUMMARY.md at master · vanhoefm/fragattacks · GitHubThird Party Advisory
-
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
Security Advisory 0063 - AristaThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/05/11/12
oss-security - various 802.11 security issues - fragattacks.comMailing List;Third Party Advisory
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