ZyXEL GS1510 Credentials Disclosure and Cross-Site Scripting Vulnerability


Description   Two security issues and a vulnerability have been reported in ZyXEL GS1510, which can be exploited by malicious people to disclose potentially sensitive information and conduct cross-site scripting attacks.
1) The application transmits credentials to webctrl.cgi and via cookie values in plaintext. This can be exploited to intercept the credentials by e.g sniffing network traffic or via a Man-in-the-Middle (MitM) attack.
2) Input passed via the URL to e.g. images is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
The security issues and vulnerability are reported in Zyxel GS1510-16 and Zyxel GS1510-24 firmware version V1.00(BVN.1). Other versions may also be affected.
     
Vulnerable Products   Vulnerable OS:
ZyXEL GS1510Vulnerable Software:
     
Solution   Update to firmware version V1.00(BVN.1)C0.
     
CVE  
     
References   https://www.upsploit.com/index.php/advisories/view/UPS-2011-0042
     
Vulnerability Manager Detection   No
     
IPS Protection  
ASQ Engine alarm Available Since
XSS - Prevention - GET : suspicious 'iframe' tag found in URL
3.2.0
XSS - Prevention - GET : suspicious 'meta' tag found in URL
3.2.0
XSS - Prevention - GET : suspicious tag with event found in URL
3.2.0
XSS - Prevention - GET : suspicious 'applet' tag found in URL
3.2.0
XSS - Phishing : suspicious 'div' tag found in URL
3.2.0
XSS - Prevention - GET : suspicious 'style' attribute found in URL
3.2.0
XSS - Prevention - GET : suspicious 'img' tag found in URL
3.2.0
XSS - Phishing : suspicious 'a' tag found in URL
3.2.0
XSS - Prevention - GET : cookie access attempt using script language found in URL
3.2.0
XSS - Prevention - GET : suspicious 'embed' tag found in URL
3.2.0
XSS - Prevention - GET : suspicious 'object' tag found in URL
3.2.0
XSS - Phishing : suspicious 'form' tag found in URL
3.2.0
XSS - Prevention - GET : javascript code found in URL
3.2.0
XSS - Prevention - GET : evasion attempt using tag characters encoding in URL
3.2.0
XSS - Prevention - GET : suspicious 'style' tag found in URL
3.2.0
XSS - Phishing : suspicious 'link' tag found in URL
3.2.0
XSS - Prevention - GET : 'script' tag found in URL
3.2.0
XSS - Prevention - GET : 'location' javascript object found in URL
3.2.0
XSS - Prevention - GET : suspicious 'div' tag found in URL
3.2.0
     


 
 
 
 
 Risk level 
Low 

 Vulnerability First Public Report Date 
2012-03-30 

 Target Type 
Server 

 Possible exploit 
Remote