Product: OX AppSuite
Vendor: Open-Xchange GmbH

Internal reference: 44542 (Bug ID)
Vulnerability type: Cross Site Scripting (CWE-80)
Vulnerable version: 7.8.0 and earlier
Vulnerable component: frontend
Report confidence: Confirmed
Solution status: Fixed by Vendor
Fixed versions: 7.6.2-rev40, 7.6.3-rev7, 7.8.0-rev19
Researcher credits: Satish Bommisetty
Vendor notification: 2016-03-07
Solution date: 2016-03-29
CVE reference: CVE-2016-3173
CVSSv3: 3.7 (CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N/RC:C)

Vulnerability Details:
The aria-label parameter of tiles at the Portal can be used to inject script 
code. Those labels use the name of the file (e.g. an image) which gets 
displayed at the portal application. Using script code at the file name leads 
to script execution.

Risk:
Malicious script code can be executed within a users context. This can lead to 
session hijacking or triggering unwanted actions via the web interface (sending 
mail, deleting data etc.). Users actively need to add a file to the portal to 
enable this attack. In case of shared files however, a internal attacker may 
modify a previously embedded file to carry a malicious file name. Furthermore 
this vulnerability can be used to persistenly execute code that got injected by 
a temporary script execution vulnerability.

Steps to reproduce:
Create or upload a file which file name contains script code and use the "Add 
to Portal" functionality. Visiting the "Portal" app will subsequently execute 
the code that got injected through the file name.

Solution:
Users should not add file to portal that carry suspicious file names. Files 
from shared folders or folders where other users have "write" permissions 
should not be added to Portal. Operators shall update to the latest available 
Patch Releases which contain a programmatic fix for this vulnerability.



Internal reference: 44583 (Bug ID)
Vulnerability type: Open Redirect (CWE-601)
Vulnerable version: 7.8.0 and earlier
Vulnerable component: backend
Report confidence: Confirmed
Solution status: Fixed by Vendor
Fixed versions: 7.6.2-rev51, 7.6.3-rev9, 7.8.0-rev27
Researcher credits: Satish Bommisetty
Vendor notification: 2016-03-08
Solution date: 2016-03-29
CVE reference: CVE-2016-3174
CVSSv3: 5.4 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)

Vulnerability Details:
The "defer" servlet offers to redirect a client to a specified URL. Since some 
checks were missing, arbitrary URLs could be provided as redirection target.

Risk:
Users can be tricked to follow a link to a trustworthy domain but end up at a 
unexpected service later on. This vulnerability can be used to prepare and 
enhance phishing attacks.

Steps to reproduce:
Construct a link to the "defer" servlet and specify an arbitrary URL as 
redirection target.

Solution:
Users should not follow links sent by untrusted parties. The full URL needs to 
be checked to make sure the expected location is opened. Operators shall update 
to the latest available Patch Releases which contain a programmatic fix for 
this vulnerability.



Internal reference: 44584 (Bug ID)
Vulnerability type: Cross Site Scripting (CWE-80)
Vulnerable version: 7.8.0 and earlier
Vulnerable component: backend
Report confidence: Confirmed
Solution status: Fixed by Vendor
Fixed versions: 7.6.2-rev51, 7.6.3-rev9, 7.8.0-rev27
Researcher credits: Satish Bommisetty
Vendor notification: 2016-03-07
Solution date: 2016-03-29
CVE reference: CVE-2016-3173
CVSSv3: 4.2 (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N)

Vulnerability Details:
Script code contained in SVG files gets executed in case the browser opens that 
file. Existing sanitization rules did not cover the case where a script tag was 
not closed immediatelly.

Risk:
Malicious script code can be executed within a users context. This can lead to 
session hijacking or triggering unwanted actions via the web interface (sending 
mail, deleting data etc.).

Steps to reproduce:
Create a SVG file that contains a script tag with some parameters
Upload that file to Drive or attach it to a E-Mail
Request the file in a way that the browser will open it "inline", which some 
browsers offer for SVG

Solution:
Users should not open files or E-Mail attachments from untrusted sources. 
Operators shall update to the latest available Patch Releases which contain a 
programmatic fix for this vulnerability.



Internal reference: 44585 (Bug ID)
Vulnerability type: Cross Site Scripting (CWE-80)
Vulnerable version: 7.8.0 and earlier
Vulnerable component: backend
Report confidence: Confirmed
Solution status: Fixed by Vendor
Fixed versions: 7.6.2-rev51, 7.6.3-rev9, 7.8.0-rev27
Researcher credits: Satish Bommisetty
Vendor notification: 2016-03-08
Solution date: 2016-03-29
CVE reference: CVE-2016-3173
CVSSv3: 4.2 (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N)

Vulnerability Details:
URLs to publications contains a parameter that resolves the publication by its. 
If the specified publication cannot be found, the parameters content is 
displayed within a error message. This message is shown in a way that it is 
vulnerable to execute script code that got provided by the parameter.

Risk:
Malicious script code can be executed within a users context. This can lead to 
session hijacking or triggering unwanted actions via the web interface (sending 
mail, deleting data etc.).

Steps to reproduce:
Create a URL to a publication and specify script code as publication name. In 
case the publication does not exist, the name will be reflected at the error 
page and execute its script code.

Solution:
Users should not open links from untrusted sources. The full URL needs to be 
checked to make sure the expected location is opened. Operators shall update to 
the latest available Patch Releases which contain a programmatic fix for this 
vulnerability.



Internal reference: 44586 (Bug ID)
Vulnerability type: Cross Site Scripting (CWE-80)
Vulnerable version: 7.8.0 and earlier
Vulnerable component: backend
Report confidence: Confirmed
Solution status: Fixed by Vendor
Fixed versions: 7.6.2-rev51, 7.6.3-rev9, 7.8.0-rev27
Researcher credits: Satish Bommisetty
Vendor notification: 2016-03-08
Solution date: 2016-03-29
CVE reference: CVE-2016-3173
CVSSv3: 4.2 (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N)

Vulnerability Details:
File listings at publication pages can be used to execute script code in 
context of the client visiting the page. Code can be injected by creating files 
where the file name contains script code.

Risk:
Malicious script code can be executed within a users context. This can lead to 
session hijacking or triggering unwanted actions via the web interface (sending 
mail, deleting data etc.).

Steps to reproduce:
Create or upload a file which file name contains script code. Then create a 
publication and lure users to visit that publication page

Solution:
Users should not open links from untrusted sources. Operators shall update to 
the latest available Patch Releases which contain a programmatic fix for this 
vulnerability.



Internal reference: 44598 (Bug ID)
Vulnerability type: Cross Site Scripting (CWE-80)
Vulnerable version: 7.8.0 and earlier
Vulnerable component: backend
Report confidence: Confirmed
Solution status: Fixed by Vendor
Fixed versions: 7.6.2-rev51, 7.6.3-rev9, 7.8.0-rev27
Researcher credits: Satish Bommisetty
Vendor notification: 2016-03-08
Solution date: 2016-03-29
CVE reference: CVE-2016-3173
CVSSv3: 5.4 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)

Vulnerability Details:
The "session" parameter of the uwaWidgets servlet can be used to execute script 
code in the context of the requesting client. If the value of "session" does 
not match a existing session id, its reflected to an error page. By tricking 
the browser to enable MIME-sniffing, the response is executed as script code.

Risk:
Users can be tricked to follow a link to a trustworthy domain but end up at a 
unexpected service later on. This vulnerability can be used to prepare and 
enhance phishing attacks.

Steps to reproduce:
Create a URL to the uwaWidgets servlet which claims to be pointing to a .html 
file, at the same time add script code to the session parameter.

Solution:
Users should not open links from untrusted sources. The full URL needs to be 
checked to make sure the expected location is opened. Operators shall update to 
the latest available Patch Releases which contain a programmatic fix for this 
vulnerability.



Internal reference: 44622 (Bug ID)
Vulnerability type: Argument Injection or Modification (CWE-88)
Vulnerable version: 7.8.0 and earlier
Vulnerable component: backend
Report confidence: Confirmed
Solution status: Fixed by Vendor
Fixed versions: 7.6.2-rev51, 7.6.3-rev9, 7.8.0-rev27
Researcher credits: Satish Bommisetty
Vendor notification: 2016-03-09
Solution date: 2016-03-29
CVE reference: CVE-2016-3173
CVSSv3: 3.7 (CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N)

Vulnerability Details:
Script code contained in a XML files can be executed in the context of a 
clients browser by removing the content_disposition header. The code does 
prevent to add arbitrary data but does not check empty data and falls-back to 
send headers in a way that browsers execute the response as script code 
depending on the file type.

Risk:
Malicious script code can be executed within a users context. This can lead to 
session hijacking or triggering unwanted actions via the web interface (sending 
mail, deleting data etc.).

Steps to reproduce:
Create a XML file that contains script code and upload it to drive. The share 
the file with another user and craft a link to that file which uses a empty 
content_disposition parameter.

Solution:
Users should not open links from untrusted sources. Operators shall update to 
the latest available Patch Releases which contain a programmatic fix for this 
vulnerability.

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