Description
A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Zyxel | USG FLEX 100(W) firmware | 4.50 through 5.30 | — |
| Zyxel | USG FLEX 200 firmware | 4.50 through 5.30 | — |
| Zyxel | USG FLEX 500 firmware | 4.50 through 5.30 | — |
| Zyxel | USG FLEX 700 firmware | 4.50 through 5.30 | — |
| Zyxel | ATP series firmware | 4.32 through 5.30 | — |
| Zyxel | VPN series firmware | 4.30 through 5.30 | — |
| Zyxel | USG FLEX 50(W) firmware | 4.16 through 5.30 | — |
| Zyxel | USG 20(W)-VPN firmware | 4.16 through 5.30 | — |
| Zyxel | USG/ZyWALL series firmware | 4.09 through 4.72 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
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Zyxel Firewall SUID Binary Privilege Escalation
exploit/linux/local/zyxel_suid_cp_lpe
GitHub 1 repository
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greek0x0/CVE-2022-30526 ★ 1 · Sep 1, 2022
Metasploit exploit for CVE-2022-30526
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.