VDB-95793 · CVE-2017-5544 · BID 95708

FiberHome Fengine S5800 V210R240 SSH resource management

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.
5.6$0-$5k0.00

Summaryinfo

A vulnerability was found in FiberHome Fengine S5800 V210R240. It has been classified as problematic. Impacted is an unknown function of the component SSH. Performing a manipulation results in resource management. This vulnerability was named CVE-2017-5544. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in FiberHome Fengine S5800 V210R240. It has been classified as problematic. This affects an unknown code block of the component SSH. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

An issue was discovered on FiberHome Fengine S5800 switches V210R240. An unauthorized attacker can access the device's SSH service, using a password cracking tool to establish SSH connections quickly. This will trigger an increase in the SSH login timeout (each of the login attempts will occupy a connection slot for a longer time). Once this occurs, legitimate login attempts via SSH/telnet will be refused, resulting in a denial of service; you must restart the device.

The bug was discovered 01/23/2017. The weakness was presented 01/23/2017 (Website). The advisory is shared at nfcwar.com. This vulnerability is uniquely identified as CVE-2017-5544 since 01/19/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

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 SecurityFocus (BID 95708†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

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

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / 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-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/19/2017 🔍
01/23/2017 +4 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
05/14/2026 +3398 days 🔍

Sourcesinfo

Advisory: nfcwar.com
Status: Not defined

CVE: CVE-2017-5544 (🔍)
GCVE (CVE): GCVE-0-2017-5544
GCVE (VulDB): GCVE-100-95793
SecurityFocus: 95708 - FiberHome Fengine S5800 Switches CVE-2017-5544 Denial of Service Vulnerability
OSVDB: - CVE-2017-5544 - FiberHome - Fengine S5800 - Denial of Service Issue

Entryinfo

Created: 01/23/2017 16:25
Updated: 05/14/2026 10:08
Changes: 01/23/2017 16:25 (56), 07/30/2020 09:57 (5), 05/14/2026 10:08 (17)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!