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.

CVSS v3 9.6 CRITICAL
CVSS v2.0 9.3 HIGH

9.6^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

9.3^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 8.6 / Impact : 10.0

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

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 (hide)

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

History

No history.

Information

Published : 2020-10-06 15:15

Updated : 2024-08-04 16:15

NVD link : CVE-2020-26574

Mitre link : CVE-2020-26574

CVE.ORG link : CVE-2020-26574

JSON object : View

Products Affected

leostream

connection_broker

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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