VDB-110033 · CVE-2017-16952 · EDB-ID 43185

KMPlayer 4.2.2.4 NSV File input validation

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.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in KMPlayer 4.2.2.4. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component NSV File Handler. The manipulation leads to input validation. This vulnerability is listed as CVE-2017-16952. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in KMPlayer 4.2.2.4 (Multimedia Player Software). It has been rated as problematic. This issue affects an unknown function of the component NSV File Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

KMPlayer 4.2.2.4 allows remote attackers to cause a denial of service via a crafted NSV file.

The bug was discovered 11/22/2017. The weakness was presented 11/28/2017 as EDB-ID 43185 as not defined exploit (Exploit-DB). The advisory is shared at exploit-db.com. The identification of this vulnerability is CVE-2017-16952 since 11/26/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available.

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 6 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 (43185). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Multimedia Player Software

Name

KMPlayer

Version

4.2.2.4

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

11/22/2017 🔍
11/26/2017 +4 days 🔍
11/28/2017 +2 days 🔍
11/28/2017 +0 days 🔍
11/28/2017 +0 days 🔍
11/28/2017 +0 days 🔍
11/29/2017 +1 days 🔍
12/13/2025 +2936 days 🔍