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A command injection vulnerability in the IPSec VPN feature of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an unauthenticated attacker to execute some OS commands on an affected device by sending a crafted username to the vulnerable device. Note that this attack could be successful only if the device was configured in User-Based-PSK authentication mode and a valid user with a long username exceeding 28 characters exists.
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AND
OR
*cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:*
Changed
CPE Configuration
AND
OR
*cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*
Changed
CPE Configuration
AND
OR
*cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_700
AND
OR
*cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:
Initial Analysis by NIST9/05/2024 10:40:39 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
AND
OR
*cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.39
OR
cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:usg_flex_700
Changed
Reference Type
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024 No Types Assigned
A command injection vulnerability in the IPSec VPN feature of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an unauthenticated attacker to execute some OS commands on an affected device by sending a crafted username to the vulnerable device. Note that this attack could be success