CVE-2020-26574

CVSS V2 High 9.3 CVSS V3 Critical 9.6
Description
** 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.
Overview
  • CVE ID
  • CVE-2020-26574
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-10-06T15:15:15
  • Last Modified Date
  • 2020-10-22T19:07:22
Weakness Enumerations
CWE URL
CWE-79 http://cwe.mitre.org/data/definitions/79.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:leostream:connection_broker:*:*:*:*:*:*:*:* 1 OR 8.2.15 8.2.73
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 9.3
  • Severity
  • HIGH
  • Exploitability Score
  • 8.6
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.6
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 2.8
  • Impact Score
  • 6
References
Reference URL Reference Tags
https://adepts.of0x.cc/leostream-xss-to-rce/ Exploit Third Party Advisory
https://www.leostream.com/resources/product-lifecycle/ Release Notes Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-26574
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26574
History
Created Old Value New Value Data Type Notes
2022-05-10 16:22:26 Added to TrackCVE
2022-12-04 23:46:42 2020-10-06T15:15Z 2020-10-06T15:15:15 CVE Published Date updated
2022-12-04 23:46:43 2020-10-22T19:07:22 CVE Modified Date updated
2022-12-04 23:46:43 Analyzed Vulnerability Status updated