CVE-2021-45918 Vulnerability Details

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CVE-2021-45918 Metadata Quick Info

CVE Published: 20/06/2022 | CVE Updated: 17/09/2024 | CVE Year: 2021
Source: twcert | Vendor: NHI | Product: health insurance web service component
Status : PUBLISHED

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CVE-2021-45918 Description

NHI’s health insurance web service component has insufficient validation for input string length, which can result in heap-based buffer overflow attack. A remote attacker can exploit this vulnerability to flood the memory space reserved for the program, in order to terminate service without authentication, which requires a system restart to recover service.

Metrics

CVSS Version: 3.1 | Base Score: 7.5 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

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

Weakness Enumeration (CWE)

CWE-ID: CWE-122
CWE Name: CWE-122 Heap-based Buffer Overflow
Source: NHI

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description:


Source: NVD (National Vulnerability Database).