cisco-sa-wlc-auth-bypass-JRNhV4fF

csafUScisco_csaf

Cisco Wireless LAN Controller Management Interface Authentication Bypass Vulnerability

Advisory ansehen veröffentlicht 2022-04-13

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.

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beschreibt (1)

Zugehörige CVEs.

IDSchweregrad ausnutzbar
CVE-2022-20695UScritical10.0—
A vulnerability in the authentication functionality of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to bypass authentication control…
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Referenzen

Externe Belege — Patches, Meldungen, Analysen.

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Behebungen (16)

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

    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 Controllers

    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 Controllers

    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 Controller

    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 Controllers

    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 Controllers

    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 Controllers

    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 Controller

    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 Controllers

    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 Controllers

    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 Controllers

    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 Controller

    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 Controllers

    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 Controllers

    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 Controllers

    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 Controller

    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.

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