#VU66914 Stored cross-site scripting in GoAhead WebServer - CVE-2011-4273

Vulnerability identifier: #VU66914

Vulnerability risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear]

CVE-ID: CVE-2011-4273

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
GoAhead WebServer
Server applications / Web servers

Vendor: EF Education First

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 the "group" parameter of addgroup.asp, "url" parameter of addlimit.asp and "adduser.asp" User ID parameter. A remote attacker can inject 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
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

GoAhead WebServer: 2.18

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External links
https://secunia.com/advisories/46894
https://www.kb.cert.org/vuls/id/384427
https://exchange.xforce.ibmcloud.com/vulnerabilities/70434

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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. However, proof of concept for this vulnerability is available.