CVE Vulnerability

CVE-2020-21523

A Server-Side Freemarker template injection vulnerability in halo CMS v1.1.3 In the Edit Theme File function. The ftl file can be edited. This is the Freemarker template file. This file can cause arbitrary code execution when it is rendered in the background. exp: ${test("touch /tmp/freemarkerPwned")}

10 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/halo-dev/halo/issues/419 Exploit Issue Tracking
Configurations

Configuration 1

cpe:2.3:a:halo:halo:1.1.3:*:*:*:*:*:*:*
Information

Published : 2020-09-30 06:15

Updated : 2020-10-09 05:40

NVD link : CVE-2020-21523

Mitre link : CVE-2020-21523

Products Affected
No products.
CWE
CWE-74