CVE Vulnerability

CVE-2020-15843

ActFax Version 7.10 Build 0335 (2020-05-25) is susceptible to a privilege escalation vulnerability due to insecure folder permissions on %PROGRAMFILES%ActiveFaxClient, %PROGRAMFILES%ActiveFaxInstall and %PROGRAMFILES%ActiveFaxTerminal. The folder permissions allow "Full Control" to "Everyone". An authenticated local attacker can exploit this to replace the TSClientB.exe binary in the Terminal directory, which is executed on logon for every user. Alternatively, the attacker can replace any of the binaries in the Client or Install directories. The latter requires additional user interaction, for example starting the client.

4.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.3 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.3 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://blog.to.com/advisory-actfax-7-10-build-0335-privilege-escalation-cve-2020-15843/ Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:actfax:actfax:7.10:build_0335:*:*:*:*:*:*
Information

Published : 2020-09-24 11:15

Updated : 2020-10-09 04:22

NVD link : CVE-2020-15843

Mitre link : CVE-2020-15843

Products Affected
No products.
CWE
CWE-276

Incorrect Default Permissions