SB2012071601 - Multiple vulnerabilities in Moodle
Published: July 16, 2012 Updated: August 11, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 vulnerabilities.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2011-4293)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.
The theme implementation in Moodle 2.0.x before 2.0.4 and 2.1.x before 2.1.1 triggers duplicate caching of Cascading Style Sheets (CSS) and JavaScript content, which allows remote attackers to bypass intended access restrictions and write to an operating-system temporary directory via unspecified vectors.
2) Input validation error (CVE-ID: CVE-2011-4294)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.
The error-message functionality in Moodle 1.9.x before 1.9.13, 2.0.x before 2.0.4, and 2.1.x before 2.1.1 does not ensure that a continuation link refers to an http or https URL for the local Moodle instance, which might allow attackers to trick users into visiting arbitrary web sites via unspecified vectors.
3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2011-4295)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote #AU# to read and manipulate data.
The moodle_enrol_external:role_assign function in enrol/externallib.php in Moodle 2.0.x before 2.0.4 and 2.1.x before 2.1.1 does not have an authorization check, which allows remote authenticated users to gain privileges by making a role assignment.
4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2011-4296)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote #AU# to manipulate or delete data.
lib/db/access.php in Moodle 2.0.x before 2.0.4 and 2.1.x before 2.1.1 assigns incorrect capabilities to the course-creator role, which allows remote authenticated users to modify course filters by leveraging this role.
5) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2011-4297)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.
comment/lib.php in Moodle 2.0.x before 2.0.4 and 2.1.x before 2.1.1 does not properly restrict comment capabilities, which allows remote attackers to post a comment by leveraging the guest role and operating on a front-page activity.
Remediation
Install update from vendor's website.
References
- http://git.moodle.org/gw?p=moodle.git;a=commit;h=e1c2a211f259821910be2cba23679d4176fb00a3
- http://moodle.org/mod/forum/discuss.php?d=182736
- http://openwall.com/lists/oss-security/2011/11/14/1
- http://git.moodle.org/gw?p=moodle.git;a=commit;h=8f9f666c902cb30ef6f519353f38c45a29fdf4a6
- http://moodle.org/mod/forum/discuss.php?d=182737
- http://git.moodle.org/gw?p=moodle.git;a=commit;h=d20f655d59cd486fd9b3a26ad353af13daafd1d3
- http://moodle.org/mod/forum/discuss.php?d=182738
- http://git.moodle.org/gw?p=moodle.git;a=commit;h=88d823c1f491a3c74f67bbf74306a8d1109dee02
- http://moodle.org/mod/forum/discuss.php?d=182739
- http://git.moodle.org/gw?p=moodle.git;a=commit;h=9da3c2efadcc5f56cb8adc19c67ed16be35780f3
- http://moodle.org/mod/forum/discuss.php?d=182740