VDB-118145 · CVE-2018-8898 · EDB-ID 44657

D-Link DSL-3782 A1_WI_20170303 /romfile.cfg 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-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in D-Link DSL-3782 A1_WI_20170303. Impacted is an unknown function of the file /romfile.cfg. The manipulation leads to improper authentication. This vulnerability is referenced as CVE-2018-8898. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in D-Link DSL-3782 A1_WI_20170303. This issue affects some unknown processing of the file /romfile.cfg. 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:

A flaw in the authentication mechanism in the Login Panel of router D-Link DSL-3782 (A1_WI_20170303) allows unauthenticated attackers to perform arbitrary modification (read, write) to passwords and configurations as long as the Administrator is connected to the web interface. For example, GET /romfile.cfg allows the attacker to retrieve the complete settings of the router (all credentials included) while POST /cgi-bin/New_GUI/Set/Admin.asp allows the attacker to successfully change the password of the Web Interface.

The bug was discovered 05/20/2018. The weakness was published 05/23/2018 as EDB-ID 44657 as not defined exploit (Exploit-DB). The advisory is shared at exploit-db.com. The identification of this vulnerability is CVE-2018-8898 since 03/21/2018. 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.

After immediately, there has been an exploit disclosed. The exploit is available 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 3 days. During that time the estimated underground price was around $5k-$25k.

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 (44657). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

D-Link

Name

DSL-3782

Version

A1_WI_20170303

License

commercial

Website

Vendor: https://www.dlink.com/

CPE 2.3info

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CPE 2.2info

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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

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

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: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

03/21/2018 🔍
05/20/2018 +60 days 🔍
05/23/2018 +2 days 🔍
05/23/2018 +0 days 🔍
05/23/2018 +0 days 🔍
05/23/2018 +0 days 🔍
05/24/2018 +1 days 🔍
08/25/2024 +2285 days 🔍