#VU49161 Cross-site scripting in Cherokee webserver - CVE-2019-20798

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists in handler_server_info.c due to insufficient sanitization of user-supplied data passed to the About page in the default configuration of the web server and its administrator panel. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Example:

http://[host]/about/"><script>alert(1)</script>
http://[host]:9090/about/"><script>alert(1)</script>

Remediation

External links

• https://github.com/cherokee/webserver/issues/1227
• https://logicaltrust.net/blog/2019/11/cherokee.html
• https://security.gentoo.org/glsa/202012-09