CVE-2020-3418
published 2020-09-24CVE-2020-3418: A vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers could allow an unauthenticated, adjacent attacker to send…
PriorityP421medium4.7CVSS 3.1
AVAACLPRNUINSCCNILAN
EPSS
0.41%
33.8th percentile
A vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers could allow an unauthenticated, adjacent attacker to send ICMPv6 traffic prior to the client being placed into RUN state. The vulnerability is due to an incomplete access control list (ACL) being applied prior to RUN state. An attacker could exploit this vulnerability by connecting to the associated service set identifier (SSID) and sending ICMPv6 traffic. A successful exploit could allow the attacker to send ICMPv6 traffic prior to RUN state.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_ios_xe_software | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe_wireless_controller | — | — |
| msrc | cbl2_grub2_2.06rc1-7_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
nvdv3.04.7MEDIUMCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
nvdv2.03.3LOWAV:A/AC:L/Au:N/C:N/I:P/A:N
vendor_msrc6.4MEDIUM
vendor_redhat6.4MEDIUM
vendor_cisco4.7MEDIUM
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GHSA
GHSA-9g2r-34xj-79x9: A vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers could allow an unauthenticated, adjacent attacker
ghsa_unreviewed·2022-05-24
CVE-2020-3418 [MEDIUM] CWE-269 GHSA-9g2r-34xj-79x9: A vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers could allow an unauthenticated, adjacent attacker
A vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers could allow an unauthenticated, adjacent attacker to send ICMPv6 traffic prior to the client being placed into RUN state. The vulnerability is due to an incomplete access control list (ACL) being applied prior to RUN state. An attacker could exploit this vulnerability by connecting to the associated service set identifier (SSID) and sending ICMPv6 traffic. A successful exploit could allow the attacker to send ICMPv6 traffic prior to RUN state.
Microsoft
If certificates that signed grub are installed into db grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot
vendor_msrc·2021-03-09·CVSS 6.4
CVE-2021-3418 [MEDIUM] CWE-281 If certificates that signed grub are installed into db grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot
If certificates that signed grub are installed into db grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown yet it could have been tampered. This flaw is a reintroduction of CVE-2020-15705 and only affects grub2 versions prior to 2.06 and upstream and distributions using the shim_lock mechanism.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is compose
Red Hat
grub2: grub 2.05 reintroduced CVE-2020-15705
vendor_redhat·2021-03-02·CVSS 6.4
CVE-2021-3418 [MEDIUM] CWE-281 grub2: grub 2.05 reintroduced CVE-2020-15705
grub2: grub 2.05 reintroduced CVE-2020-15705
If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could have been tampered. This flaw is a reintroduction of CVE-2020-15705 and only affects grub2 versions prior to 2.06 and upstream and distributions using the shim_lock mechanism.
A flaw was found in grub. If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could have been tampered. This flaw is a reintroduction of CV
Cisco
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family Improper Access Control Vulnerability
vendor_cisco·2020-09-24·CVSS 4.7
CVE-2020-3418 [MEDIUM] CWE-284 Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family Improper Access Control Vulnerability
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family Improper Access Control Vulnerability
A vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers could allow an unauthenticated, adjacent attacker to send ICMPv6 traffic prior to the client being placed into RUN state.
The vulnerability is due to an incomplete access control list (ACL) being applied prior to RUN state. An attacker could exploit this vulnerability by connecting to the associated service set identifier (SSID) and sending ICMPv6 traffic. A successful exploit could allow the attacker to send ICMPv6 traffic prior to RUN state.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory
Cisco
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family Improper Access Control Vulnerability
vendor_cisco·CVSS 3.0
CVE-2020-3418 Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family Improper Access Control Vulnerability
CVE-2020-3418: Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family Improper Access Control Vulnerability
A vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers could allow an unauthenticated, adjacent attacker to send ICMPv6 traffic prior to the client being placed into RUN state. The vulnerability is due to an incomplete access control list (ACL) being applied prior to RUN state. An attacker could exploit this vulnerability by connecting to the associated service set identifier (SSID) and sending ICMPv6 traffic. A successful exploit could allow the attacker to send ICMPv6 traffic prior to RUN state. Cisco has released software updates that address this vulnerability. There are no
CVSS: 3.0
CWE: CWE-284, CWE-284
Bug IDs: CSCvr
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-09-24
Published