#VU45007 Cross-site scripting in Webmin - CVE-2011-1937

Vulnerability identifier: #VU45007

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2011-1937

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Webmin
Web applications / Remote management & hosting panels

Vendor: Webmin

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data in Webmin 1.540 and earlier. 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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Webmin: 0.75 - 1.530

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External links
https://javierb.com.ar/2011/04/24/xss-webmin-1-540/
https://openwall.com/lists/oss-security/2011/05/22/1
https://openwall.com/lists/oss-security/2011/05/24/7
https://securityreason.com/securityalert/8264
https://securitytracker.com/id?1025438
https://www.mandriva.com/security/advisories?name=MDVSA-2011:109
https://www.securityfocus.com/archive/1/517658
https://www.securityfocus.com/bid/47558
https://www.youtube.com/watch?v=CUO7JLIGUf0
https://github.com/webmin/webmin/commit/46e3d3ad195dcdc1af1795c96b6e0dc778fb6881

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.