CVE-2022-20695

highPriorität · beachten · 47EPSS 0.198 · 97. PerzentilEURUUS
grimoire priorityP1 · Urgent
Exploitable?
—
no known exploitation
Likely / severe?
19.8% (97th) EPSS
CVSS 9.3 · high
Is it mine?
12 products
Prüfe deine Angriffsfläche
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · bewertet 2026-10-27

A vulnerability in the authentication functionality of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to bypass authentication controls and log in to the device through the management interface This vulnerability is due to the improper implementation of the password validation algorithm. An attacker could exploit this vulnerability by logging in to an affected device with crafted credentials. A successful exploit could allow the attacker to bypass authentication and log in to the device as an administrator. The attacker could obtain privileges that are the same level as an administrative user but it depends on the crafted credentials. Note: This vulnerability exists because of a non-default device configuration that must be present for it to be exploitable. For details about the vulnerable configuration, see the Vulnerable Products section of this advisory.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

  • BehobenCisco Wireless LAN Controller (WLC) 8.10.151.0 when installed on Cisco 3500 Series Wireless Controllerscisco_csaf

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • BehobenCisco Wireless LAN Controller (WLC) 8.10.151.0 when installed on Cisco 5500 Series Wireless Controllerscisco_csaf

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • BehobenCisco Wireless LAN Controller (WLC) 8.10.151.0 when installed on Cisco 8500 Series Wireless Controllerscisco_csaf

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • BehobenCisco Wireless LAN Controller (WLC) 8.10.151.0 when installed on Cisco Virtual Wireless Controllercisco_csaf

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • BehobenCisco Wireless LAN Controller (WLC) 8.10.162.0 when installed on Cisco 3500 Series Wireless Controllerscisco_csaf

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • BehobenCisco Wireless LAN Controller (WLC) 8.10.162.0 when installed on Cisco 5500 Series Wireless Controllerscisco_csaf

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • BehobenCisco Wireless LAN Controller (WLC) 8.10.162.0 when installed on Cisco 8500 Series Wireless Controllerscisco_csaf

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • BehobenCisco Wireless LAN Controller (WLC) 8.10.162.0 when installed on Cisco Virtual Wireless Controllercisco_csaf

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • WorkaroundCisco Wireless LAN Controller (WLC) 8.10.151.0 when installed on Cisco 3500 Series Wireless Controllerscisco_csaf

    There are workarounds that addresses this vulnerability. Choose one of the following based on the environment: Option 1: No Macfilters in the Environment Customers who do not use macfilters can reset the macfilter radius compatibility mode to the default value using the following CLI command: wlc > config macfilter radius-compat cisco Option 2: Macfilters in the Environment Customers who use macfilters and who are able to change the radius server configuration to match other possible compatibility modes can modify the macfilter compatibility to either cisco or free using one of the following CLI commands: wlc > config macfilter radius-compat cisco wlc > config macfilter radius-compat free For more information about the different macfilter compatibility modes, see Cisco Wireless Controller Command Reference ["https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/cmd-ref/b-cr810/config_commands_j_to_q.html#wp4097683650"]. While these workarounds have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.

  • WorkaroundCisco Wireless LAN Controller (WLC) 8.10.151.0 when installed on Cisco 5500 Series Wireless Controllerscisco_csaf

    There are workarounds that addresses this vulnerability. Choose one of the following based on the environment: Option 1: No Macfilters in the Environment Customers who do not use macfilters can reset the macfilter radius compatibility mode to the default value using the following CLI command: wlc > config macfilter radius-compat cisco Option 2: Macfilters in the Environment Customers who use macfilters and who are able to change the radius server configuration to match other possible compatibility modes can modify the macfilter compatibility to either cisco or free using one of the following CLI commands: wlc > config macfilter radius-compat cisco wlc > config macfilter radius-compat free For more information about the different macfilter compatibility modes, see Cisco Wireless Controller Command Reference ["https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/cmd-ref/b-cr810/config_commands_j_to_q.html#wp4097683650"]. While these workarounds have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.

  • WorkaroundCisco Wireless LAN Controller (WLC) 8.10.151.0 when installed on Cisco 8500 Series Wireless Controllerscisco_csaf

    There are workarounds that addresses this vulnerability. Choose one of the following based on the environment: Option 1: No Macfilters in the Environment Customers who do not use macfilters can reset the macfilter radius compatibility mode to the default value using the following CLI command: wlc > config macfilter radius-compat cisco Option 2: Macfilters in the Environment Customers who use macfilters and who are able to change the radius server configuration to match other possible compatibility modes can modify the macfilter compatibility to either cisco or free using one of the following CLI commands: wlc > config macfilter radius-compat cisco wlc > config macfilter radius-compat free For more information about the different macfilter compatibility modes, see Cisco Wireless Controller Command Reference ["https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/cmd-ref/b-cr810/config_commands_j_to_q.html#wp4097683650"]. While these workarounds have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.

  • WorkaroundCisco Wireless LAN Controller (WLC) 8.10.151.0 when installed on Cisco Virtual Wireless Controllercisco_csaf

    There are workarounds that addresses this vulnerability. Choose one of the following based on the environment: Option 1: No Macfilters in the Environment Customers who do not use macfilters can reset the macfilter radius compatibility mode to the default value using the following CLI command: wlc > config macfilter radius-compat cisco Option 2: Macfilters in the Environment Customers who use macfilters and who are able to change the radius server configuration to match other possible compatibility modes can modify the macfilter compatibility to either cisco or free using one of the following CLI commands: wlc > config macfilter radius-compat cisco wlc > config macfilter radius-compat free For more information about the different macfilter compatibility modes, see Cisco Wireless Controller Command Reference ["https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/cmd-ref/b-cr810/config_commands_j_to_q.html#wp4097683650"]. While these workarounds have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.

  • WorkaroundCisco Wireless LAN Controller (WLC) 8.10.162.0 when installed on Cisco 3500 Series Wireless Controllerscisco_csaf

    There are workarounds that addresses this vulnerability. Choose one of the following based on the environment: Option 1: No Macfilters in the Environment Customers who do not use macfilters can reset the macfilter radius compatibility mode to the default value using the following CLI command: wlc > config macfilter radius-compat cisco Option 2: Macfilters in the Environment Customers who use macfilters and who are able to change the radius server configuration to match other possible compatibility modes can modify the macfilter compatibility to either cisco or free using one of the following CLI commands: wlc > config macfilter radius-compat cisco wlc > config macfilter radius-compat free For more information about the different macfilter compatibility modes, see Cisco Wireless Controller Command Reference ["https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/cmd-ref/b-cr810/config_commands_j_to_q.html#wp4097683650"]. While these workarounds have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.

  • WorkaroundCisco Wireless LAN Controller (WLC) 8.10.162.0 when installed on Cisco 5500 Series Wireless Controllerscisco_csaf

    There are workarounds that addresses this vulnerability. Choose one of the following based on the environment: Option 1: No Macfilters in the Environment Customers who do not use macfilters can reset the macfilter radius compatibility mode to the default value using the following CLI command: wlc > config macfilter radius-compat cisco Option 2: Macfilters in the Environment Customers who use macfilters and who are able to change the radius server configuration to match other possible compatibility modes can modify the macfilter compatibility to either cisco or free using one of the following CLI commands: wlc > config macfilter radius-compat cisco wlc > config macfilter radius-compat free For more information about the different macfilter compatibility modes, see Cisco Wireless Controller Command Reference ["https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/cmd-ref/b-cr810/config_commands_j_to_q.html#wp4097683650"]. While these workarounds have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.

  • WorkaroundCisco Wireless LAN Controller (WLC) 8.10.162.0 when installed on Cisco 8500 Series Wireless Controllerscisco_csaf

    There are workarounds that addresses this vulnerability. Choose one of the following based on the environment: Option 1: No Macfilters in the Environment Customers who do not use macfilters can reset the macfilter radius compatibility mode to the default value using the following CLI command: wlc > config macfilter radius-compat cisco Option 2: Macfilters in the Environment Customers who use macfilters and who are able to change the radius server configuration to match other possible compatibility modes can modify the macfilter compatibility to either cisco or free using one of the following CLI commands: wlc > config macfilter radius-compat cisco wlc > config macfilter radius-compat free For more information about the different macfilter compatibility modes, see Cisco Wireless Controller Command Reference ["https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/cmd-ref/b-cr810/config_commands_j_to_q.html#wp4097683650"]. While these workarounds have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.

  • WorkaroundCisco Wireless LAN Controller (WLC) 8.10.162.0 when installed on Cisco Virtual Wireless Controllercisco_csaf

    There are workarounds that addresses this vulnerability. Choose one of the following based on the environment: Option 1: No Macfilters in the Environment Customers who do not use macfilters can reset the macfilter radius compatibility mode to the default value using the following CLI command: wlc > config macfilter radius-compat cisco Option 2: Macfilters in the Environment Customers who use macfilters and who are able to change the radius server configuration to match other possible compatibility modes can modify the macfilter compatibility to either cisco or free using one of the following CLI commands: wlc > config macfilter radius-compat cisco wlc > config macfilter radius-compat free For more information about the different macfilter compatibility modes, see Cisco Wireless Controller Command Reference ["https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/cmd-ref/b-cr810/config_commands_j_to_q.html#wp4097683650"]. While these workarounds have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.

02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

10.0
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 9.1–10

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 10
v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 6
v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU
v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · psirt@cisco.com USAusnutzbarkeit 3.9 · Auswirkung 6
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · Cisco PSIRT US
03

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
04

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-287USprimärCWE-303USCWE-303US
05

betroffene Produkte (12)

Betroffene Produkte und Versionsbereiche.

06

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

  • cisco-sa-wlc-auth-bypass-JRNhV4fFCisco Wireless LAN Controller Management Interface Authentication Bypass Vulnerability2022-04-13csaf · cisco_csafUS

    A vulnerability in the authentication functionality of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to bypass authentication controls and log in to the device through the management interface This vulnerability is due to the improper implementation of the password validation algorithm. An attacker could exploit this vulnerability by logging in to an affected device with crafted credentials. A successful exploit could allow the attacker to bypass authentication and log in to the device as an administrator. The attacker could obtain privileges that are the same level as an administrative user but it depends on the crafted credentials. Note: This vulnerability exists because of a non-default device configuration that must be present for it to be exploitable. For details about the vulnerable configuration, see the Vulnerable Products ["#vp"] section of this advisory. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.

07

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

08

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bducisco_csafnvdNVDCVE.orgMITRE
veröffentlicht 2022-04-15geändert 2026-06-17
10

Referenzen (7)

Externe Belege — Patches, Meldungen, Analysen.

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