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Medium severity · published May 11, 2021
CVE-2020-26146
An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices
5.3
CVSS
5.6%
EPSS
No
On KEV
Description
An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WPA, WPA2, and WPA3 implementations reassemble fragments with non-consecutive packet numbers. An adversary can abuse this to exfiltrate selected fragments. This vulnerability is exploitable when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used. Note that WEP is vulnerable to this attack by design.
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Adjacent
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.6% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
C-100 Firmware · Arista
before 11.0.0-36 · source: NVD
CF
C-110 Firmware · Arista
before 11.0.0-36 · source: NVD
CF
C-120 Firmware · Arista
before 11.0.0-36 · source: NVD
CF
C-130 Firmware · Arista
before 11.0.0-36 · source: NVD
CF
C-200 Firmware · Arista
before 11.0.0-36 · source: NVD
CF
C-230 Firmware · Arista
before 10.0.1-31 · source: NVD
CF
C-235 Firmware · Arista
before 10.0.1-31 · source: NVD
CF
C-250 Firmware · Arista
before 10.0.1-31 · source: NVD
CF
C-260 Firmware · Arista
before 10.0.1-31 · source: NVD
CF
C-65 Firmware · Arista
All versions, or not specified · source: NVD
CF
C-75 Firmware · Arista
All versions, or not specified · source: NVD
GI
Galaxy I9305 Firmware · Samsung
4.4.4 · source: NVD
Affected product
CF
C-100 Firmware
Arista
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-26146
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-26146
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
Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
Third Party Advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
Third Party Advisory
https://www.fragattacks.com
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