VDB-112768 · CVE-2018-6537 · EDB-ID 43936

Flexense SyncBreeze Enterprise 10.4.18 Service Port 9121 Crafted Packet 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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Flexense SyncBreeze Enterprise 10.4.18. The impacted element is an unknown function of the component Service Port 9121. Executing a manipulation as part of Crafted Packet can lead to memory corruption. This vulnerability appears as CVE-2018-6537. The attack may be performed from remote. In addition, an exploit is available. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability was found in Flexense SyncBreeze Enterprise 10.4.18. It has been declared as critical. This vulnerability affects an unknown code block of the component Service Port 9121. The manipulation as part of a Crafted Packet leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A buffer overflow vulnerability in the control protocol of Flexense SyncBreeze Enterprise v10.4.18 allows remote attackers to execute arbitrary code by sending a crafted packet to TCP port 9121.

The bug was discovered 02/01/2018. The weakness was presented 02/02/2018 as EDB-ID 43936 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2018-6537 since 02/02/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. It is possible to download the exploit 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 1 days. During that time the estimated underground price was around $0-$5k.

Proper firewalling of tcp/9121 is able to address this issue.

The vulnerability is also documented in the vulnerability database at Exploit-DB (43936). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Flexense

Name

SyncBreeze Enterprise

Version

10.4.18

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.1

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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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: 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: 🔍
Exploit Delay Time: 🔍

Firewalling: 🔍

Timelineinfo

02/01/2018 🔍
02/02/2018 +1 days 🔍
02/02/2018 +0 days 🔍
02/02/2018 +0 days 🔍
02/02/2018 +0 days 🔍
02/02/2018 +0 days 🔍
02/03/2018 +1 days 🔍
01/01/2020 +697 days 🔍

Sourcesinfo

Advisory: EDB-ID 43936
Status: Not defined

CVE: CVE-2018-6537 (🔍)
GCVE (CVE): GCVE-0-2018-6537
GCVE (VulDB): GCVE-100-112768
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/03/2018 09:05
Updated: 01/01/2020 10:33
Changes: 02/03/2018 09:05 (67), 01/01/2020 10:33 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.