VDB-111812 · CVE-2017-16887 · EDB-ID 43460

FiberHome LM53Q1 VH519R05C01S38 Web Services Key permission

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.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in FiberHome LM53Q1 VH519R05C01S38. This affects an unknown function of the component Web Services. Such manipulation leads to permission (Key). This vulnerability is uniquely identified as CVE-2017-16887. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in FiberHome LM53Q1 VH519R05C01S38 and classified as problematic. Affected by this issue is an unknown functionality of the component Web Services. The manipulation with an unknown input leads to a permission vulnerability (Key). Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality. CVE summarizes:

The portal on FiberHome Mobile WIFI Device Model LM53Q1 VH519R05C01S38 uses SOAP based web services in order to interact with the portal. Unauthorized Access to Web Services can result in disclosure of the WLAN key/password.

The bug was discovered 01/07/2018. The weakness was disclosed 01/12/2018 as EDB-ID 43460 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability is handled as CVE-2017-16887 since 11/19/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1222.

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 5 days. During that time the estimated underground price was around $0-$5k.

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 (43460). The entries VDB-111810 and VDB-111811 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

FiberHome

Name

LM53Q1

Version

VH519R05C01S38

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

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

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

NVD Base Score: 🔍

Exploitinginfo

Name: Key
Class: Permission / Key
CWE: CWE-275 / CWE-266
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

11/19/2017 🔍
01/07/2018 +49 days 🔍
01/12/2018 +5 days 🔍
01/12/2018 +0 days 🔍
01/12/2018 +0 days 🔍
01/12/2018 +0 days 🔍
01/13/2018 +1 days 🔍
06/14/2024 +2344 days 🔍