CVE-2016-2155
First published: Sun May 22 2016(Updated: )
The grade-reporting feature in Singleview (aka Single View) in Moodle 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 does not consider the moodle/grade:manage capability, which allows remote authenticated users to modify "Exclude grade" settings by leveraging the Non-Editing Instructor role.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/moodle/moodle | >=3.0.0<3.0.3 | 3.0.3 |
| composer/moodle/moodle | >=2.9.0<2.9.5 | 2.9.5 |
| composer/moodle/moodle | >=2.8.0<2.8.11 | 2.8.11 |
| Moodle | =2.8.0 | |
| Moodle | =2.8.1 | |
| Moodle | =2.8.2 | |
| Moodle | =2.8.3 | |
| Moodle | =2.8.4 | |
| Moodle | =2.8.5 | |
| Moodle | =2.8.6 | |
| Moodle | =2.8.7 | |
| Moodle | =2.8.8 | |
| Moodle | =2.8.9 | |
| Moodle | =2.8.10 | |
| Moodle | =2.9.0 | |
| Moodle | =2.9.1 | |
| Moodle | =2.9.2 | |
| Moodle | =2.9.3 | |
| Moodle | =2.9.4 | |
| Moodle | =3.0.0 | |
| Moodle | =3.0.1 | |
| Moodle | =3.0.2 |
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Reference Links
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-52378
- http://www.openwall.com/lists/oss-security/2016/03/21/1
- http://www.securitytracker.com/id/1035333
- https://moodle.org/mod/forum/discuss.php?d=330177
- https://nvd.nist.gov/vuln/detail/CVE-2016-2155
- https://github.com/moodle/moodle/commit/3328dc32a75d6aa4bc92865fa236dc6d52dcb7bf
- https://github.com/moodle/moodle/commit/5208032b23b7999d7048a3da7a4b70c038d93506
- https://github.com/moodle/moodle/commit/71beedee8c82c378ed10a0569c8b19ec641df9e3
- https://github.com/moodle/moodle/commit/ad67b7eeea4abf194eb432d5958e9a7032ee2c25
- https://github.com/moodle/moodle/commit/ae66ed23b6ae8000efd4e1f612697892c9795c65
- https://github.com/moodle/moodle/commit/b74d0f8404651d9ad0d97fd7eb58a94079342eb3
- https://github.com/moodle/moodle/commit/c7f7b18adecb4a80c4f3defee31e72e591133693
- https://web.archive.org/web/20160424224349/http://www.securitytracker.com/id/1035333
- https://github.com/advisories/GHSA-32hg-73hp-vwc8 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2016-2155?
CVE-2016-2155 is considered a medium-severity vulnerability due to its potential for unauthorized changes to grade settings.
How do I fix CVE-2016-2155?
To fix CVE-2016-2155, upgrade Moodle to version 2.8.11, 2.9.5, or 3.0.3 or higher.
What versions of Moodle are affected by CVE-2016-2155?
CVE-2016-2155 affects Moodle versions 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3.
What type of attack does CVE-2016-2155 enable?
CVE-2016-2155 allows remote authenticated users to potentially modify 'Exclude grade' settings without proper permissions.
Are there any workarounds for CVE-2016-2155?
While upgrading is the recommended solution for CVE-2016-2155, restricting user capabilities may mitigate some risks temporarily.
- agent/type
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-32hg-73hp-vwc8
- alias/CVE-2016-2155
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- agent/references
- agent/description
- agent/author
- agent/softwarecombine
- collector/github-advisory
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/trending
- agent/source
- agent/tags
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- package-manager/composer
- vendor/moodle
- canonical/moodle
- version/moodle/2.8.0
- version/moodle/2.8.1
- version/moodle/2.8.2
- version/moodle/2.8.3
- version/moodle/2.8.4
- version/moodle/2.8.5
- version/moodle/2.8.6
- version/moodle/2.8.7
- version/moodle/2.8.8
- version/moodle/2.8.9
- version/moodle/2.8.10
- version/moodle/2.9.0
- version/moodle/2.9.1
- version/moodle/2.9.2
- version/moodle/2.9.3
- version/moodle/2.9.4
- version/moodle/3.0.0
- version/moodle/3.0.1
- version/moodle/3.0.2