CVE-2025-63212: flexiva lx100 — Exploit

Description

GatesAir Flexiva-LX devices on firmware 1.0.13 and 2.0, including models LX100, LX300, LX600, and LX1000, expose sensitive session identifiers (sid) in the publicly accessible log file located at /log/Flexiva%20LX.log. An unauthenticated attacker can retrieve valid session IDs and hijack sessions without providing any credentials. This attack requires the legitimate user (admin) to have previously closed the browser window without logging out.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-200 CWE-200

Affected Products

Vendor	Product	Versions
gatesair	flexiva_lx100_firmware	All
gatesair	flexiva_lx100_firmware	All
gatesair	flexiva_lx100	All
gatesair	flexiva_lx300_firmware	All
gatesair	flexiva_lx300_firmware	All
gatesair	flexiva_lx300	All
gatesair	flexiva_lx600_firmware	All
gatesair	flexiva_lx600_firmware	All
gatesair	flexiva_lx600	All
gatesair	flexiva_lx1000_firmware	All
gatesair	flexiva_lx1000_firmware	All
gatesair	flexiva_lx1000	All

References

Exploits

https://github.com/shiky8/my--cve-vulnerability-research/tree/main/CVE-2025-63212%20_GatesAir%20Flexiva-LX%20Series%20_%20Session%20Hijacking

Other References

https://www.gatesair.com/

Frequently Asked Questions

What is CVE-2025-63212? +

GatesAir Flexiva-LX devices on firmware 1.0.13 and 2.0, including models LX100, LX300, LX600, and LX1000, expose sensitive session identifiers (sid) in the publicly accessible log file located at /log/Flexiva%20LX.log. An unauthenticated attacker can retrieve valid session IDs and hijack sessions without providing any credentials. This attack requires the legitimate user (admin) to have previously closed the browser window without logging out. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-63212? +

CVE-2025-63212 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-63212? +

CVE-2025-63212 affects products from gatesair, specifically: flexiva_lx100, flexiva_lx1000, flexiva_lx1000_firmware, flexiva_lx100_firmware, flexiva_lx300, flexiva_lx300_firmware, flexiva_lx600, flexiva_lx600_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-63212? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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