PT-2019-17440 · NetGear · Netgear N300

Dave Mcdaniel · Published 2019-09-11 · Updated 2022-06-27 · CVE-2019-5054

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions NETGEAR N300 (WNR2000v5) version V1.0.0.70

Description A denial-of-service issue exists in the session handling functionality of the NETGEAR N300 HTTP server. This occurs when an HTTP request with an empty User-Agent string is sent to a page that requires authentication, causing a null pointer dereference and resulting in the HTTP service crashing. An unauthenticated attacker can exploit this by sending a specially crafted HTTP request.

Recommendations For NETGEAR N300 (WNR2000v5) version V1.0.0.70, consider restricting access to pages that require authentication until a fix is available. As a temporary workaround, avoid using empty User-Agent strings in HTTP requests to minimize the risk of triggering this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2019-5054

Affected Products

Netgear N300

References · 3

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2019-0831 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-5054 · Security Note
• https://osv.dev/vulnerability/CVE-2019-5054 · Vendor Advisory