Vulnerability Details : CVE-2020-26574
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
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2020-26574
- cpe:2.3:a:leostream:connection_broker:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26574
0.47%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 75 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26574
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST | |
|
9.6
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
2.8
|
6.0
|
NIST |
CWE ids for CVE-2020-26574
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-26574
-
https://www.leostream.com/resources/product-lifecycle/
Leostream Product Life Cycle - Leostream Platform Remote Access for VDI and Hosted DesktopsRelease Notes;Vendor Advisory
-
https://adepts.of0x.cc/leostream-xss-to-rce/
A brief encounter with Leostream Connect Broker - Adepts of 0xCCExploit;Third Party Advisory
Jump to