VDB-141695 · CVE-2019-5054 · GCVE-0-2019-5054

Netgear N300 1.0.0.70 Session User-Agent null pointer dereference

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Netgear N300 1.0.0.70. This issue affects some unknown processing of the component Session Handler. The manipulation of the argument User-Agent as part of HTTP Request leads to null pointer dereference. This vulnerability is referenced as CVE-2019-5054. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Netgear N300 1.0.0.70. It has been rated as problematic. This issue affects an unknown functionality of the component Session Handler. The manipulation of the argument User-Agent as part of a HTTP Request leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

An exploitable denial-of-service vulnerability exists in the session handling functionality of the NETGEAR N300 (WNR2000v5 with Firmware Version V1.0.0.70) HTTP server. An HTTP request with an empty User-Agent string sent to a page requiring authentication can cause a null pointer dereference, resulting in the HTTP service crashing. An unauthenticated attacker can send a specially crafted HTTP request to trigger this vulnerability.

The weakness was published 09/11/2019. The identification of this vulnerability is CVE-2019-5054 since 01/04/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/19/2023).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at VDB-141696. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Netgear

Name

N300

Version

1.0.0.70

License

commercial

Website

Vendor: https://www.netgear.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Talos): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/04/2019 🔍
09/11/2019 +250 days 🔍
09/12/2019 +1 days 🔍
12/19/2023 +1559 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2019-5054 (🔍)
GCVE (CVE): GCVE-0-2019-5054
GCVE (VulDB): GCVE-100-141695
See also: 🔍

Entryinfo

Created: 09/12/2019 08:44
Updated: 12/19/2023 14:29
Changes: 09/12/2019 08:44 (38), 08/21/2020 11:35 (17), 12/19/2023 14:24 (3), 12/19/2023 14:29 (12)
Complete: 🔍
Cache ID: 216::103