CVE-2020-15703 Vulnerability Details

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CVE-2020-15703 Metadata Quick Info

CVE Published: 31/10/2020 | CVE Updated: 16/09/2024 | CVE Year: 2020
Source: canonical | Vendor: Canonical | Product: aptdaemon
Status : PUBLISHED

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CVE-2020-15703 Description

There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd read a file as root. Having a symlink in place results in an error message if the file exists, and no error otherwise. This way an unprivileged user can check for the existence of any files on the system as root.

Metrics

CVSS Version: 3.1 | Base Score: 4 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

l➤ Exploitability Metrics:
    Attack Vector (AV)* LOCAL
    Attack Complexity (AC)* LOW
    Privileges Required (PR)* NONE
    User Interaction (UI)* NONE
    Scope (S)* UNCHANGED

l➤ Impact Metrics:
    Confidentiality Impact (C)* LOW
    Integrity Impact (I)* NONE
    Availability Impact (A)* NONE

Weakness Enumeration (CWE)

CWE-ID: CWE-22
CWE Name: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ( Path Traversal )
Source: Canonical

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description:


Source: NVD (National Vulnerability Database).