TP-LINK WR840N Authorization Header memory corruption

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.
6.9	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in TP-LINK WR840N. Affected by this issue is some unknown functionality of the component Authorization Header Handler. The manipulation results in memory corruption. This vulnerability is known as CVE-2018-15172. It is possible to launch the attack remotely. Furthermore, an exploit is available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in TP-LINK WR840N (affected version unknown). Affected is an unknown functionality of the component Authorization Header Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

TP-Link WR840N devices have a buffer overflow via a long Authorization HTTP header.

The bug was discovered 08/05/2018. The weakness was published 08/15/2018 (Website). The advisory is available at hackingvila.wordpress.com. This vulnerability is traded as CVE-2018-15172 since 08/07/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k.

It is possible to mitigate the weakness by firewalling .

The vulnerability is also documented in the vulnerability database at Exploit-DB (45203). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

TP-LINK

Name

WR840N

License

commercial

Website

Vendor: https://www.tp-link.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.3
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/05/2018 🔍
08/07/2018 +1 days 🔍
08/15/2018 +8 days 🔍
08/15/2018 +0 days 🔍
08/16/2018 +1 days 🔍
07/28/2024 +2173 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: hackingvila.wordpress.com
Status: Not defined

CVE: CVE-2018-15172 (🔍)
GCVE (CVE): GCVE-0-2018-15172
GCVE (VulDB): GCVE-100-122970
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/16/2018 06:38
Updated: 07/28/2024 15:43
Changes: 08/16/2018 06:38 (57), 03/16/2020 09:35 (4), 07/28/2024 15:43 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.