5.4
MEDIUM
CVE-2020-26147
Linux Kernel WEP/WPA/WPA2/WPA3 Protocol Fragment Injection Vulnerability
Description

An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.

INFO

Published Date :

May 11, 2021, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 5:19 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

4.2

Exploitability Score :

1.2
Public PoC/Exploit Available at Github

CVE-2020-26147 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-26147 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Arista c-65_firmware
2 Arista c-75_firmware
3 Arista o-90_firmware
4 Arista w-68_firmware
5 Arista c-75
6 Arista o-90
7 Arista w-68
8 Arista c-65
1 Siemens scalance_w1700_ieee_802.11ac_firmware
2 Siemens scalance_w700_ieee_802.11n_firmware
3 Siemens scalance_w700_ieee_802.11n
4 Siemens scalance_w1700_ieee_802.11ac
1 Linux linux_kernel
1 Debian debian_linux
: Total Affected Vendor : 4 | Products : 14
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-26147.

URL Resource
http://www.openwall.com/lists/oss-security/2021/05/11/12 Mailing List Patch 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://lists.debian.org/debian-lts-announce/2021/06/msg00019.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html Mailing List 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 Product
http://www.openwall.com/lists/oss-security/2021/05/11/12 Mailing List Patch 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://lists.debian.org/debian-lts-announce/2021/06/msg00019.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html Mailing List 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 Product

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
kali973/fragAttacks

None

Makefile Shell C Roff Python PHP C++ QMake Java

Updated: 1 year, 6 months ago
0 stars 0 fork 0 watcher
Born at : June 5, 2023, 8:59 a.m. This repo has been linked 11 different CVEs too.
Profile Photo
vanhoefm/fragattacks

None

Makefile Shell C Roff Perl Python PHP C++ QMake Java

Updated: 2 weeks, 3 days ago
1238 stars 184 fork 184 watcher
Born at : Sept. 22, 2020, 10:38 p.m. This repo has been linked 11 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-26147 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-26147 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/05/11/12
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
    Added Reference https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
    Added Reference https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
    Added Reference https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
    Added Reference https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
    Added Reference https://www.fragattacks.com
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Jul. 12, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.8.9:*:*:*:*:*:*:* OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.4 up to (excluding) 4.4.271 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9 up to (excluding) 4.9.271 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14 up to (excluding) 4.14.235 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19 up to (excluding) 4.19.193 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.4 up to (excluding) 5.4.124 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.10.42 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.12 up to (excluding) 5.12.9
  • Modified Analysis by [email protected]

    Dec. 04, 2021

    Action Type Old Value New Value
    Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html Mailing List, Third Party Advisory
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu Third Party Advisory
    Changed Reference Type https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 No Types Assigned https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:arista:c-75_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:arista:c-75:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:arista:o-90_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:arista:o-90:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:arista:c-65_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:arista:c-65:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:arista:w-68_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:arista:w-68:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_w700_ieee_802.11n_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_w700_ieee_802.11n:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_w1700_ieee_802.11ac_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_w1700_ieee_802.11ac:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 28, 2021

    Action Type Old Value New Value
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu [No Types Assigned]
    Added Reference https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 13, 2021

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 23, 2021

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html [No Types Assigned]
    Added Reference https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html [No Types Assigned]
  • Initial Analysis by [email protected]

    May. 28, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:A/AC:H/Au:N/C:P/I:P/A:N)
    Added CVSS V3.1 NIST AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
    Changed Reference Type http://www.openwall.com/lists/oss-security/2021/05/11/12 No Types Assigned http://www.openwall.com/lists/oss-security/2021/05/11/12 Mailing List, Patch, Third Party Advisory
    Changed Reference Type https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md No Types Assigned https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md Third Party Advisory
    Changed Reference Type https://www.fragattacks.com No Types Assigned https://www.fragattacks.com Product
    Added CWE NIST NVD-CWE-Other
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.8.9:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 11, 2021

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2021/05/11/12 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-26147 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-26147 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.13 }} -0.03%

score

0.49029

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: