VDB-128679 · CVE-2018-19861 · EDB-ID 45999

MiniShare up to 1.4.1 HTTP HEAD 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 classified as critical. Affected by this issue is some unknown functionality. Performing a manipulation as part of HTTP HEAD Request results in memory corruption. This vulnerability is cataloged as CVE-2018-19861. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is recommended to replace the affected component with an alternative.

Detailsinfo

A vulnerability was found in MiniShare up to 1.4.1. It has been classified as critical. This affects an unknown code block. The manipulation as part of a HTTP HEAD Request leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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

The bug was discovered 12/05/2018. The weakness was shared 01/03/2019 as EDB-ID 45999 as not defined exploit (Exploit-DB). It is possible to read the advisory at exploit-db.com. This vulnerability is uniquely identified as CVE-2018-19861 since 12/05/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. The exploit is shared for download 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). The entry VDB-128680 is related to this item. Be aware that VulDB is the high quality source for vulnerability data.

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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VulDB Base Score: 🔍
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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: 🔍

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Saint ID: minishare_head_buffer_overflow
Saint Name: MiniShare 1.4.1 HEAD method buffer overflow

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 🔍