CVE-2020-26574
Last modified
CVE-2020-26574 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. 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. EPSS estimates a 2.09% chance of exploitation in the next 30 days.
Description
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
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Leostream | Connection Broker | >= 8.2.15, <= 8.2.73 |
References
- https://adepts.of0x.cc/leostream-xss-to-rce/Exploit, Third Party Advisory
- https://www.leostream.com/resources/product-lifecycle/Release Notes, Vendor Advisory
- https://adepts.of0x.cc/leostream-xss-to-rce/Exploit, Third Party Advisory
- https://www.leostream.com/resources/product-lifecycle/Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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