Description
Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, VPN series firmware versions 4.30 through 5.21, NSG series firmware versions 1.00 through 1.33 Patch 4, NXC2500 firmware version 6.10(AAIG.3) and earlier versions, NAP203 firmware version 6.25(ABFA.7) and earlier versions, NWA50AX firmware version 6.25(ABYW.5) and earlier versions, WAC500 firmware version 6.30(ABVS.2) and earlier versions, and WAX510D firmware version 6.30(ABTF.2) and earlier versions, that could allow a local authenticated attacker to cause a buffer overflow or a system crash via a crafted payload.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Zyxel USG/ZyWALL series firmware
4.09 through 4.71affected
Zyxel USG FLEX series firmware
4.50 through 5.21affected
Zyxel ATP series firmware
4.32 through 5.21affected
Zyxel VPN series firmware
4.30 through 5.21affected
Zyxel NSG series firmware
1.00 through 1.33 Patch 4affected
Zyxel NXC2500 firmware
<= 6.10(AAIG.3)affected
Zyxel NAP203 firmware
<= 6.25(ABFA.7)affected
Zyxel NWA50AX firmware
<= 6.25(ABYW.5)affected
Zyxel WAC500 firmware
<= 6.30(ABVS.2)affected
Zyxel WAX510D firmware
<= 6.30(ABTF.2)affected
References
- https://www.zyxel.com/support/multiple-vulnerabilities-of-firewalls-AP-controllers-and-APs.shtml ↗
- http://seclists.org/fulldisclosure/2022/Jun/15 ↗
- http://packetstormsecurity.com/files/167464/Zyxel-Buffer-Overflow-Format-String-Command-Injection.html ↗
- http://packetstormsecurity.com/files/177036/Zyxel-zysh-Format-String-Proof-Of-Concept.html ↗