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TITLE:
Moodle Two Security Bypass Security Issues

SECUNIA ADVISORY ID:
SA45487

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45487/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45487

RELEASE DATE:
2011-08-08

DISCUSS ADVISORY:
http://secunia.com/advisories/45487/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/45487/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=45487

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Two security issues have been reported in Moodle, which can be
exploited by malicious users to bypass certain security
restrictions.

1) An error in the "role_assign()" function of the role assignment
web service does not validate access permissions and can be exploited
to assign roles.

2) An error in the handling of access permissions of a course creator
can be exploited to change the local filter settings for a course.

The security issues are reported in versions prior to 2.0.4 and
2.1.1.

SOLUTION:
Update to version 2.0.4 or 2.1.1 and manually alter the permissions
to remove rights from course creators.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) Petr Skoda
2) Ray Lawrence

ORIGINAL ADVISORY:
Moodle (MSA-11-0021, MSA-11-0022):
http://moodle.org/mod/forum/discuss.php?d=182738
http://moodle.org/mod/forum/discuss.php?d=182739

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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

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Secunia NEVER sends attached files with advisories.
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