VYPR

CWE-65

Windows Hard Link

VariantIncomplete

Description

The product, when opening a file or directory, does not sufficiently handle when the name is associated with a hard link to a target that is outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.

Failure for a system to check for hard links can result in vulnerability to different types of attacks. For example, an attacker can escalate their privileges if a file used by a privileged program is replaced with a hard link to a sensitive file (e.g. AUTOEXEC.BAT). When the process opens the file, the attacker can assume the privileges of that process, or prevent the program from accurately processing data.

Hierarchy (View 1000)

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CVEs mapped to this weakness (6)

  • CVE-2020-6013HigJul 6, 2020
    risk 0.57cvss 8.8epss 0.02

    ZoneAlarm Firewall and Antivirus products before version 15.8.109.18436 allow an attacker who already has access to the system to execute code at elevated privileges through a combination of file permission manipulation and exploitation of Windows CVE-2020-00896 on unpatched…

  • CVE-2019-8452HigApr 22, 2019
    risk 0.54cvss 7.8epss 0.01

    A hard-link created from log file archive of Check Point ZoneAlarm up to 15.4.062 or Check Point Endpoint Security client for Windows before E80.96 to any file on the system will get its permission changed so that all users can access that linked file. Doing this on files with…

  • CVE-2022-23742HigMay 12, 2022
    risk 0.51cvss 7.8epss 0.04

    Check Point Endpoint Security Client for Windows versions earlier than E86.40 copy files for forensics reports from a directory with low privileges. An attacker can replace those files with malicious or linked content, such as exploiting CVE-2020-0896 on unpatched systems or…

  • CVE-2019-19231HigDec 20, 2019
    risk 0.47cvss 7.3epss 0.01

    An insecure file access vulnerability exists in CA Client Automation 14.0, 14.1, 14.2, and 14.3 Agent for Windows that can allow a local attacker to gain escalated privileges.

  • CVE-2019-8454HigApr 29, 2019
    risk 0.46cvss 7.0epss 0.00

    A local attacker can create a hard-link between a file to which the Check Point Endpoint Security client for Windows before E80.96 writes and another BAT file, then by impersonating the WPAD server, the attacker can write BAT commands into that file that will later be run by the…

  • CVE-2019-8455HigApr 17, 2019
    risk 0.46cvss 7.1epss 0.00

    A hard-link created from the log file of Check Point ZoneAlarm up to 15.4.062 to any file on the system will get its permission changed so that all users can access that linked file. Doing this on files with limited access gains the local attacker higher privileges to the file.