CVE-2023-41101 — CRITICAL (9.8)

Q: How severe is CVE-2023-41101?

CVE-2023-41101 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2023-41101?

Check the references section above for vendor advisories and patch information. Affected products include: Opennds Opennds.

Vulnerability Description

An issue was discovered in the captive portal in OpenNDS before version 10.1.3. get_query in http_microhttpd.c does not validate the length of the query string of GET requests. This leads to a stack-based buffer overflow in versions 9.x and earlier, and to a heap-based buffer overflow in versions 10.x and later. Attackers may exploit the issue to crash OpenNDS (Denial-of-Service condition) or to inject and execute arbitrary bytecode (Remote Code Execution). Affected OpenNDS before version 10.1.3 fixed in OpenWrt master and OpenWrt 23.05 on 23. November by updating OpenNDS to version 10.2.0.

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
Opennds	Opennds	>= 9.0.0, < 10.1.3

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2023-41101?

CVE-2023-41101 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered in the captive portal in OpenNDS before version 10.1.3. get_query in http_microhttpd.c does not validate the length of the query string of GET requests. This leads to a stack-b...

How severe is CVE-2023-41101?

CVE-2023-41101 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-2023-41101?

Check the references section above for vendor advisories and patch information. Affected products include: Opennds Opennds.