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CVE-2022-30526

Published: Jul 19, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-269
NVD MITRE
7.8CVSSHIGH
EPSS Score
1.1%
Top 38.5%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-269

Affected Products

USG FLEX 100(W) firmwareZyxelNetworking Infrastructure
USG FLEX 200 firmwareZyxelNetworking Infrastructure
USG FLEX 500 firmwareZyxelNetworking Infrastructure
USG FLEX 700 firmwareZyxelNetworking Infrastructure
ATP series firmwareZyxelNetworking Infrastructure
zyxelcommercialTWNetworking Infrastructureaka zyxel communications corp.
and 39 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://www.zyxel.com/support/Zyxel-security-advisory-authenticated-directory-traversal-vulnerabilities-of-firewalls.shtml
zyxel.com
http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html
packetstormsecurity.com
https://www.rapid7.com/blog/post/2022/07/19/cve-2022-30526-fixed-zyxel-firewall-local-privilege-escalation/
rapid7.com

Timeline

Published
Jul 19, 2022
Last Updated
Nov 21, 2024

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