Vulnerability identifier: #VU91250
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-269
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
NAS326
Hardware solutions /
Routers for home users
NAS542
Hardware solutions /
Routers for home users
Vendor: ZyXEL Communications Corp.
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to improper privilege management in the command "show_allsessions". A remote user can obtain a logged-in administrator’s session information containing cookies on the target device.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
NAS326: 5.21(AAZF.16)C0
NAS542: 5.21(ABAG.13)C0
External links
http://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nas-products-06-04-2024
http://outpost24.com/blog/zyxel-nas-critical-vulnerabilities/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.