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.
6.4	$0-$5k	0.00

A vulnerability classified as problematic was found in WinSparkle up to 0.5.2. This vulnerability affects an unknown part of the component Executable File Loading. The manipulation with an unknown input leads to a untrusted search path vulnerability. The CWE definition for the vulnerability is CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Untrusted search path vulnerability in WinSparkle versions prior to 0.5.3 allows remote attackers to execute arbitrary code via a specially crafted executable file in an unspecified directory.

The bug was discovered 12/26/2016. The weakness was released 06/09/2017 with Mitsui Bussan Secure Directions, Inc. (Website). The advisory is shared for download at jvn.jp. This vulnerability was named CVE-2016-7838 since 09/09/2016. The attack needs to be approached locally. A single authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1574.

The vulnerability was handled as a non-public zero-day exploit for at least 165 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.5.3 eliminates this vulnerability.

Productinfo

Name

• WinSparkle

Version

• 0.5.0
• 0.5.1
• 0.5.2

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Untrusted search path
CWE: CWE-426
ATT&CK: T1574

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WinSparkle 0.5.3
Patch: github.com

Timelineinfo

09/09/2016 🔍
12/26/2016 +108 days 🔍
12/26/2016 +0 days 🔍
06/09/2017 +165 days 🔍
06/09/2017 +0 days 🔍
06/10/2017 +1 days 🔍
12/08/2022 +2007 days 🔍

Sourcesinfo

Advisory: bb454857348245a7397f9e4fbb3a902f4ac25913
Researcher: Takashi Yoshikawa
Organization: Mitsui Bussan Secure Directions, Inc.
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7838 (🔍)
SecurityFocus: 95099 - WinSparkle CVE-2016-7838 Remote Security Bypass Vulnerability

Entryinfo

Created: 06/10/2017 08:56
Updated: 12/08/2022 10:50
Changes: 06/10/2017 08:56 (61), 10/15/2019 20:15 (4), 12/26/2020 19:00 (2), 12/08/2022 10:50 (4)
Complete: 🔍

Discussion

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