CVE-2018-20336 — HIGH (7.5)

Vulnerability Description

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. There is a stack-based buffer overflow issue in parse_req_queries function in wanduck.c via a long string over UDP, which may lead to an information leak.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Asus	Asuswrt-Merlin	3.0.0.4.384.20308
Asus	Rt-Ac68U	-

Related Weaknesses (CWE)

CWE-120

References

https://starlabs.sg/advisories/18-20336/ExploitThird Party Advisory
https://www.asus.com/Networking/RT-AC1200G-plus/HelpDesk_BIOS/
https://starlabs.sg/advisories/18-20336/ExploitThird Party Advisory
https://www.asus.com/Networking/RT-AC1200G-plus/HelpDesk_BIOS/

FAQ

What is CVE-2018-20336?

CVE-2018-20336 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in ASUSWRT 3.0.0.4.384.20308. There is a stack-based buffer overflow issue in parse_req_queries function in wanduck.c via a long string over UDP, which may lead to an informati...

How severe is CVE-2018-20336?

CVE-2018-20336 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-20336?

Check the references section above for vendor advisories and patch information. Affected products include: Asus Asuswrt-Merlin, Asus Rt-Ac68U.