NA

CVE-2022-30526

Published: 19/07/2022 Updated: 13/12/2022
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 0

Vulnerability Summary

A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 up to and including 5.30, USG FLEX 200 firmware versions 4.50 up to and including 5.30, USG FLEX 500 firmware versions 4.50 up to and including 5.30, USG FLEX 700 firmware versions 4.50 up to and including 5.30, USG FLEX 50(W) firmware versions 4.16 up to and including 5.30, USG20(W)-VPN firmware versions 4.16 up to and including 5.30, ATP series firmware versions 4.32 up to and including 5.30, VPN series firmware versions 4.30 up to and including 5.30, USG/ZyWALL series firmware versions 4.09 up to and including 4.72, which could allow a local malicious user to execute some OS commands with root privileges in some directories on a vulnerable device.

Vulnerability Trend

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zyxel usg_flex_100w_firmware

zyxel usg_flex_200_firmware

zyxel usg_flex_500_firmware

zyxel usg_flex_700_firmware

zyxel usg_flex_50w_firmware

zyxel usg20w-vpn_firmware

zyxel atp800_firmware

zyxel atp700_firmware

zyxel atp500_firmware

zyxel atp200_firmware

zyxel atp100w_firmware

zyxel atp100_firmware

zyxel vpn1000_firmware

zyxel vpn300_firmware

zyxel vpn100_firmware

zyxel vpn50_firmware

zyxel usg20-vpn_firmware

zyxel usg_2200-vpn_firmware

zyxel zywall_110_firmware

zyxel zywall_310_firmware

zyxel zywall_1100_firmware

zyxel usg40_firmware

zyxel usg40w_firmware

zyxel usg60_firmware

zyxel usg60w_firmware

Exploits

This Metasploit module exploits CVE-2022-30526, a local privilege escalation vulnerability that allows a low privileged user (eg nobody) escalate to root The issue stems from a suid binary that allows all users to copy files as root This module overwrites the firewall's crontab to execute an attacker provided script, resulting in code execution ...