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Secunia Security Advisory 49890

Secunia Security Advisory 49890
Posted Jul 17, 2012
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Some security issues and multiple vulnerabilities have been reported in Moodle, which can be exploited by malicious users to bypass certain security restrictions and by malicious people to bypass certain security restrictions, conduct cross-site scripting attacks, disclose potentially sensitive information, and conduct SQL injection attacks.

tags | advisory, vulnerability, xss, sql injection
MD5 | 59139b6704cc9512469d085df789dfc7

Secunia Security Advisory 49890

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TITLE:
Moodle Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA49890

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49890/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49890

RELEASE DATE:
2012-07-17

DISCUSS ADVISORY:
http://secunia.com/advisories/49890/#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/49890/

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=49890

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:
Some security issues and multiple vulnerabilities have been reported
in Moodle, which can be exploited by malicious users to bypass
certain security restrictions and by malicious people to bypass
certain security restrictions, conduct cross-site scripting attacks,
disclose potentially sensitive information, and conduct SQL injection
attacks.

1) The application does not properly validate references when
shortcuts or aliases are not permitted and can be exploited to e.g.
bypass file size restrictions.

This security issue is reported in version 2.3.

2) An error when verifying capabilities of cached users in the
"is_enrolled()" function (lib/accesslib.php) can be exploited to
bypass certain security restrictions.

3) Certain input passed to the LTI (External tool) module is not
properly sanitised 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.

The vulnerabilities #2 and #3 are reported in versions 2.2 through
2.2.3+ and 2.3.

4) The application does not properly restrict access to files
embedded in a block (e.g. HTML block) and can be exploited to access
otherwise restricted files.

5) An error when handling Q&A forum posts via RSS feeds can be
exploited to disclose otherwise restricted information.

6) An error when verifying capabilities in forum subscriptions can be
exploited to unsubscribe from unsubscription restricted forums.

The vulnerabilities #4 through #6 are reported in versions 2.1
through 2.1.6+ and 2.2 through 2.2.3+.

7) An error when handling redirections during the login process via
LDAP can lead to a redirection from the HTTPS to the HTTP protocol.

8) Certain input passed to the administration of cohorts is not
properly sanitised 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.

9) An error when handling "Restrict Access" conditions can be
exploited to display a group restricted activity.

The vulnerabilities #7 through #9 are reported in versions 2.0
through 2.0.9+, 2.1 through 2.1.6+, 2.2 through 2.2.3+, and 2.3.

10) Certain input passed via the Feedback module is not properly
sanitised before being used in a SQL query. This can be exploited to
manipulate SQL queries by injecting arbitrary SQL code.

This vulnerability is reported in versions 2.0 through 2.0.9+, 2.1
through 2.1.6+, and 2.2 through 2.2.3+.

SOLUTION:
Update to version 2.0.10, 2.1.7, 2.2.4, or 2.3.1.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) Petr Škoda
2, 5) Andrew Nicols
3) Dan Poltawski
4) Juan Leyva
6) Andrew Davis
7) Christophe
8) Eugene
9) Luke Tucker
10) Dan Marsden

ORIGINAL ADVISORY:
Moodle (MSA-12-0039, MSA-12-0040, MSA-12-0041, MSA-12-0042,
MSA-12-0043, MSA-12-0044, MSA-12-0046, MSA-12-0047, MSA-12-0048,
MSA-12-0049):
http://moodle.org/mod/forum/discuss.php?d=207145
http://moodle.org/mod/forum/discuss.php?d=207146
http://moodle.org/mod/forum/discuss.php?d=207147
http://moodle.org/mod/forum/discuss.php?d=207148
http://moodle.org/mod/forum/discuss.php?d=207149
http://moodle.org/mod/forum/discuss.php?d=207150
http://moodle.org/mod/forum/discuss.php?d=207152
http://moodle.org/mod/forum/discuss.php?d=207153
http://moodle.org/mod/forum/discuss.php?d=207154
http://moodle.org/mod/forum/discuss.php?d=207155

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/

----------------------------------------------------------------------

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.

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

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