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TITLE:
Dokeos Multiple Directory Traversal Vulnerabilities

SECUNIA ADVISORY ID:
SA16407

VERIFY ADVISORY:
http://secunia.com/advisories/16407/

CRITICAL:
Less critical

IMPACT:
Manipulation of data, Exposure of sensitive information

WHERE:
>From remote

SOFTWARE:
Dokeos 1.x
http://secunia.com/product/4508/

DESCRIPTION:
Some vulnerabilities have been discovered in Dokeos, which can
exploited by malicious users to conduct directory traversal attacks.

1) Input passed to the "delete" parameter in
/claroline/scorm/scormdocument.php is not properly sanitised before
being used to delete directories. This can be exploited via directory
traversal attacks to delete arbitrary directories that the web server
has permissions to.

2) Input passed to the "move_file" and "move_to" parameters in
/claroline/document/document.php is not properly sanitised before
being used to move files. This can be exploited via directory
traversal attacks to move or copy files that the web server has
permissions to.

3) Error messages generated by /claroline/scorm/showinframes.php and
/claroline/scorm/contents.php can be used to determine whether or not
a specific file exists via directory traversal sequences in the "file"
parameter.

Successful exploitation requires that the user is logged on with
course administration privileges (e.g. teachers).

The vulnerabilities have been confirmed in version 1.6. Other
versions may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
Robbe De Keyzer

OTHER REFERENCES:
SA15725
http://secunia.com/advisories/15725/

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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