CVE-2018-25318 — CRITICAL (9.8)

Vulnerability Description

Tenda FH303/A300 firmware V5.07.68_EN contains a session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient cookie validation. Attackers can send GET requests to the /goform/AdvSetDns endpoint with a crafted admin cookie to change DNS servers and redirect user traffic to malicious sites.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Tenda	Fh303 Firmware	5.07.68_en
Tenda	Fh303	-
Tenda	A300 Firmware	5.07.68_en
Tenda	A300	-

Related Weaknesses (CWE)

CWE-290

References

https://www.exploit-db.com/exploits/44381ExploitThird Party AdvisoryVDB Entry
https://www.vulncheck.com/advisories/tenda-fh303-a300-68-en-cookie-session-weaknThird Party Advisory

FAQ

What is CVE-2018-25318?

CVE-2018-25318 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Tenda FH303/A300 firmware V5.07.68_EN contains a session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient cookie validation. Attackers can...

How severe is CVE-2018-25318?

CVE-2018-25318 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2018-25318?

Check the references section above for vendor advisories and patch information. Affected products include: Tenda Fh303 Firmware, Tenda Fh303, Tenda A300 Firmware, Tenda A300.