Moodle provides calendar-event data without considering whether an activity is hidden
Impact
calendar/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.13, 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 provides calendar-event data without considering whether an activity is hidden, which allows remote authenticated users to obtain sensitive information via a web-service request.
Source excerpt · OSVAffected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
| Affected range | Recorded fix |
|---|---|
| Earlier releases before 2.7.13Ecosystem versions | 2.7.13 |
| From 2.8.0 before 2.8.11Ecosystem versions | 2.8.11 |
| From 2.9.0 before 2.9.5Ecosystem versions | 2.9.5 |
| From 3.0.0 before 3.0.3Ecosystem versions | 3.0.3 |
Version evidence: OSV · GHSA-h8vc-v44p-5r2q
View original version evidence (82 explicit versions)
Original source description
calendar/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.13, 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 provides calendar-event data without considering whether an activity is hidden, which allows remote authenticated users to obtain sensitive information via a web-service request.
References
- Security advisory nvd.nist.gov/vuln/detail/CVE-2016-2156
- Patch github.com/moodle/moodle/commit/39b851376337b853c8d403dcba64645d16f0a9bd
- Patch github.com/moodle/moodle/commit/783e695e00689d67925d6f83722d344c0bd6de94
- Patch github.com/moodle/moodle/commit/854e7b8ed0a84eb91ca455ca290427d22bc20baf
- Patch github.com/moodle/moodle/commit/c631b112d6e729c84f5d559371a399fe54502ba3
- Patch github.com/moodle/moodle/commit/d63ac148b95e5f909618e75efd76f6b5032da158
- Source reference github.com/moodle/moodle
- Source reference moodle.org/mod/forum/discuss.php
- Security advisory web.archive.org/web/20160424224349/http://www.securitytracker.com/id/1035333
- Source reference git.moodle.org/gw
- Security advisory www.openwall.com/lists/oss-security/2016/03/21/1