CVE-2020-29299

Certain Zyxel products allow command injection by an admin via an input string to chg_exp_pwd during a password-change action. This affects VPN On-premise before ZLD V4.39 week38, VPN Orchestrator before SD-OS V10.03 week32, USG before ZLD V4.39 week38, USG FLEX before ZLD V4.55 week38, ATP before ZLD V4.55 week38, and NSG before 1.33 patch 4.
Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.2 HIGH
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 85%
VendorProductVersion
zyxelvpn_orchestrator
𝑥
< 10.03
zyxelzld
𝑥
< 4.39
zyxelzld
𝑥
< 4.55
zyxelzld
𝑥
< 4.55
zyxelnsg_firmware
𝑥
< 1.33
zyxelnsg_firmware
1.33
zyxelnsg_firmware
1.33:patch1
zyxelusg_flex_firmware
-
zyxelzld
𝑥
< 4.39
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.zyxel.com/support/Zyxel-security-advisory-for-command-injection-vulnerability-of-firewalls.shtml
https://www.zyxel.com/us/en/support/security_advisories.shtml
https://www.zyxel.com/support/Zyxel-security-advisory-for-command-injection-vulnerability-of-firewalls.shtml
https://www.zyxel.com/us/en/support/security_advisories.shtml