Proxifier for Mac up to 2.18 KLoader Parameter access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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 has been found in Proxifier for Mac up to 2.18 and classified as problematic. The impacted element is an unknown function of the component KLoader. This manipulation as part of Parameter causes access control. This vulnerability is registered as CVE-2017-7643. The attack needs to be launched locally. Furthermore, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in Proxifier for Mac up to 2.18. Affected by this vulnerability is an unknown part of the component KLoader. The manipulation as part of a Parameter leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Proxifier for Mac before 2.19 allows local users to gain privileges via the first parameter to the KLoader setuid program.

The bug was discovered 04/11/2017. The weakness was published 04/14/2017 as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. This vulnerability is known as CVE-2017-7643 since 04/10/2017. An attack has to be approached locally. A single authentication is necessary for exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

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 3 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.19 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (41854). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Proxifier for Mac 2.19

Timelineinfo

04/10/2017 🔍
04/11/2017 +1 days 🔍
04/14/2017 +3 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
01/22/2025 +2840 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Confirmed

CVE: CVE-2017-7643 (🔍)
GCVE (CVE): GCVE-0-2017-7643
GCVE (VulDB): GCVE-100-99865
OSVDB: - CVE-2017-7643 - Proxifier for Mac - Privilege Escalation Issue

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/14/2017 21:31
Updated: 01/22/2025 10:11
Changes: 04/14/2017 21:31 (60), 08/31/2020 10:21 (5), 01/22/2025 10:11 (18)
Complete: 🔍
Cache ID: 216::103

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

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