VDB-104777 · CVE-2015-8264 · BID 79657

F-Secure Online Scanner F-SecureOnlineScanner.exe untrusted search path

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.
6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in F-Secure Online Scanner. This affects an unknown part of the file F-SecureOnlineScanner.exe. The manipulation leads to untrusted search path. This vulnerability is uniquely identified as CVE-2015-8264. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in F-Secure Online Scanner (affected version unknown). It has been rated as problematic. This issue affects an unknown functionality of the file F-SecureOnlineScanner.exe. The manipulation with an unknown input leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Untrusted search path vulnerability in F-Secure Online Scanner allows remote attackers to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse DLL that is located in the same folder as F-SecureOnlineScanner.exe.

The bug was discovered 12/17/2015. The weakness was disclosed 08/02/2017 by Stefan Kanthak as not defined posting (Bugtraq). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2015-8264 since 11/19/2015. An attack has to be approached locally. The successful exploitation needs a simple authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1574 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 594 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 SecurityFocus (BID 79657†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 4.8
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Untrusted search path
CWE: CWE-426
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/19/2015 🔍
12/17/2015 +28 days 🔍
12/17/2015 +0 days 🔍
08/02/2017 +594 days 🔍
08/02/2017 +0 days 🔍
08/03/2017 +1 days 🔍
11/03/2019 +822 days 🔍

Sourcesinfo

Vendor: f-secure.com

Advisory: securityfocus.com⛔
Researcher: Stefan Kanthak
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8264 (🔍)
GCVE (CVE): GCVE-0-2015-8264
GCVE (VulDB): GCVE-100-104777
SecurityFocus: 79657 - F-Secure Online Scanner CVE-2015-8264 DLL Loading Arbitrary Code Execution Vulnerability

Entryinfo

Created: 08/03/2017 10:38
Updated: 11/03/2019 10:33
Changes: 08/03/2017 10:38 (63), 11/03/2019 10:33 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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