NinjaFirewall <= 4.3.3 - Authenticated PHAR Deserialization

2021-05-30 00:00

Chloe Chamberland

Strategic Overview

Status

Patched in 4.3.4

Affected PluginNinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall

Affected Version< 4.3.4

CVSS6.6Medium

CVECVE-2021-4451

View all NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall vulnerabilities

Vulnerability Overview

The NinjaFirewall plugin for WordPress is vulnerable to Authenticated PHAR Deserialization in versions up to, and including, 4.3.3. This allows authenticated attackers to perform phar deserialization on the server. This deserialization can allow other plugin or theme exploits if vulnerable software is present (WordPress, and NinjaFirewall).

Technical Analysis

REMEDIATION: Update to version 4.3.4, or a newer patched version --- IDENTIFIER: CWE-502 (Deserialization of Untrusted Data) The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

External References

https://www.cve.org/CVERecord?id=CVE-2021-4451 https://www.wordfence.com/threat-intel/vulnerabilities/id/1a1fc6c9-50cd-40fd-a777-9eed98aab797

CVSS Vector

6.6

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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