VDB-128680 · CVE-2018-19862 · EDB-ID 45999

MiniShare up to 1.4.1 HTTP POST Request 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.
8.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in MiniShare up to 1.4.1. It has been declared as critical. This affects an unknown part. Executing a manipulation as part of HTTP POST Request can lead to memory corruption. This vulnerability is registered as CVE-2018-19862. It is possible to launch the attack remotely. Furthermore, an exploit is available. It is advisable to use an alternative in place of the affected component.

Detailsinfo

A vulnerability was found in MiniShare up to 1.4.1. It has been declared as critical. This vulnerability affects some unknown processing. The manipulation as part of a HTTP POST Request 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:

Buffer overflow in MiniShare 1.4.1 and earlier allows remote attackers to execute arbitrary code via a long HTTP POST request. NOTE: this product is discontinued.

The bug was discovered 12/05/2018. The weakness was published 01/03/2019 as EDB-ID 45999 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2018-19862 since 12/05/2018. 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 29 days. During that time the estimated underground price was around $0-$5k.

The problem might be mitigated by replacing the product with as an alternative. This product is discontinued.

The vulnerability is also documented in the vulnerability database at Exploit-DB (45999). Similar entry is available at VDB-128679. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

MiniShare

Version

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

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
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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: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Alternative
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

12/05/2018 🔍
12/05/2018 +0 days 🔍
01/03/2019 +29 days 🔍
01/03/2019 +0 days 🔍
01/03/2019 +0 days 🔍
01/03/2019 +0 days 🔍
01/04/2019 +1 days 🔍
10/25/2025 +2486 days 🔍