D-Link DIR-850L 1.02-2.06 on A1/B1 /category_view.php improper authentication

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.
8.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in D-Link DIR-850L 1.02-2.06 on A1/B1. This affects an unknown function of the file /category_view.php. The manipulation leads to improper authentication. This vulnerability is traded as CVE-2018-9032. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in D-Link DIR-850L 1.02-2.06 on A1/B1 (Router Operating System) and classified as critical. This issue affects some unknown processing of the file /category_view.php. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An authentication bypass vulnerability on D-Link DIR-850L Wireless AC1200 Dual Band Gigabit Cloud Router (Hardware Version : A1, B1; Firmware Version : 1.02-2.06) devices potentially allows attackers to bypass SharePort Web Access Portal by directly visiting /category_view.php or /folder_view.php.

The bug was discovered 03/26/2018. The weakness was shared 03/27/2018 (Website). It is possible to read the advisory at exploit-db.com. The identification of this vulnerability is CVE-2018-9032 since 03/26/2018. 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 as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. By approaching the search of inurl:category_view.php it is possible to find vulnerable targets with Google Hacking.

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

The vulnerability is also documented in the vulnerability database at Exploit-DB (44378). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

OpenVAS ID: 802560
OpenVAS Name: D-Link DIR Routers SharePort Authentication Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/26/2018 🔍
03/26/2018 +0 days 🔍
03/26/2018 +0 days 🔍
03/27/2018 +1 days 🔍
03/27/2018 +0 days 🔍
04/15/2025 +2576 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: exploit-db.com
Status: Not defined

CVE: CVE-2018-9032 (🔍)
GCVE (CVE): GCVE-0-2018-9032
GCVE (VulDB): GCVE-100-115079
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/27/2018 11:12
Updated: 04/15/2025 18:56
Changes: 03/27/2018 11:12 (62), 01/16/2020 22:25 (4), 04/15/2025 18:56 (19)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

 william.brown (+1)
8 years ago
The versions of firmware are quite old. The latest can be found at http://support.dlink.com/ProductInfo.aspx?m=DIR-850L

We have escalated this issue for verification to D-Link's R&D. Any questions can be answered by an email to: [email protected].

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!