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    CVE-2020-15590

    A vulnerability in the Private Internet Access (PIA) VPN Client for Linux 1.5 through 2.3+ allows remote attackers to bypass an intended VPN kill switch mechanism and read sensitive information via intercepting network traffic. Since 1.5, PIA has supported a “split tunnel” OpenVPN bypass option. The PIA killswitch & associated iptables firewall is designed to protect you while using the Internet. When the kill switch is configured to block all inbound and outbound network traffic, privileged applications can continue sending & receiving network traffic if net.ipv4.ip_forward has been enabled in the system kernel parameters. For example, a Docker container running on a host with the VPN turned off, and the kill switch turned on, can continue using the internet, leaking the host IP (CWE 200). In PIA 2.4.0+, policy-based routing is enabled by default and is used to direct all forwarded packets to the VPN interface automatically.

    Published:Sep 14, 2020
    Last Modified:Nov 21, 2024
    EPS:Sep 14, 2020
    EPSS Score:0.00523
    CVSS Score:7.5

    Affected Products

    Vendor
    Privateinternetaccess
    Product
    Private Internet Access Vpn Client

    Exploits

    https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-001.mdhttps://sick.codes/cve-2020-15590/https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-001.mdhttps://sick.codes/cve-2020-15590/

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High