CVE Vulnerability

CVE-2020-26574

** UNSUPPORTED WHEN ASSIGNED ** Leostream Connection Broker 8.2.x is affected by stored XSS. An unauthenticated attacker can inject arbitrary JavaScript code via the webquery.pl User-Agent HTTP header. It is rendered by the admins the next time they log in. The JavaScript injected can be used to force the admin to upload a malicious Perl script that will be executed as root via libMisc::browser_client. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

9.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

9.6 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://adepts.of0x.cc/leostream-xss-to-rce/ Exploit Third Party Advisory
https://www.leostream.com/resources/product-lifecycle/ Release Notes Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:leostream:connection_broker:*:*:*:*:*:*:*:*
Information

Published : 2020-10-06 03:15

Updated : 2020-10-22 07:07

NVD link : CVE-2020-26574

Mitre link : CVE-2020-26574

Products Affected
No products.
CWE
CWE-79