SB2026062614 - Path traversal in ATEN Unizon
Published: June 26, 2026 Updated: June 26, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Path traversal (CVE-ID: CVE-2026-9774)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within the updateLicense method in the "/rest/system/license" endpoint handler. A remote administrator can send a specially crafted HTTP request and delete arbitrary files on the system.
2) Path traversal (CVE-ID: CVE-2026-9777)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within the restoreDB method in the "/rest/system/database/restore" endpoint. A remote administrator can send a specially crafted HTTP request and upload arbitrary files on the system, leading to arbitrary code execution.
3) Path traversal (CVE-ID: CVE-2026-9776)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within the writeFileToHttpServletResponse method in the "/rest/history/report/getFile" endpoint. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.
4) Path traversal (CVE-ID: CVE-2026-9778)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within the ImportDeviceList method in the "/rest/devices/csv" endpoint. A remote administrator can send a specially crafted HTTP request and upload arbitrary files on the system, leading to arbitrary code execution.
5) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2026-9779)
CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to compromise the target system.
The vulnerability exists due to improper verification of cryptographic signature within the updateWar method in the "doCryptoHugeFileToFile" function. A remote administrator can execute arbitrary code on the system.
6) Path traversal (CVE-ID: CVE-2026-9775)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within the uploadSSL method in the "/rest/system/ssl" endpoint. A remote administrator can send a specially crafted HTTP request and delete arbitrary files on the system.
Remediation
Install update from vendor's website.
References
- https://www.zerodayinitiative.com/advisories/ZDI-26-378/
- https://www.aten.com/global/en/supportcenter/info/security-advisory/27/
- https://www.zerodayinitiative.com/advisories/ZDI-26-381/
- https://www.aten.com/global/en/supportcenter/info/security-advisory/30/
- https://www.zerodayinitiative.com/advisories/ZDI-26-380/
- https://www.zerodayinitiative.com/advisories/ZDI-26-382/
- https://www.aten.com/global/en/supportcenter/info/security-advisory/31/
- https://www.zerodayinitiative.com/advisories/ZDI-26-383/
- https://www.aten.com/global/en/supportcenter/info/security-advisory/32/
- https://www.zerodayinitiative.com/advisories/ZDI-26-379/
- https://www.aten.com/global/en/supportcenter/info/security-advisory/28/