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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT Security Bulletin ASB-2013.0085 A number of vulnerabilities have been identified in Moodle 17 July 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Moodle Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Cross-site Scripting -- Remote with User Interaction Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2013-2246 CVE-2013-2245 CVE-2013-2244 CVE-2013-2243 CVE-2013-2242 Member content until: Friday, August 16 2013 OVERVIEW A number of vulnerabilities have been identified in Moodle prior to 2.5.1, 2.4.5, 2.3.8 and 2.2.11. [1, 2, 3, 4, 5] IMPACT The vendor has provided the following details regarding these vulnerabilities: CVE-2013-2242: "Users were able to access a daemon-mode Chat activity without the required capability." [1] CVE-2013-2243: "It was possible to determine answers from ID values in Lesson activity matching questions." [2] CVE-2013-2244: "Conditional access rule values for user fields were able to contain unescaped HTML/JS that would be output to users." [3] CVE-2013-2245: "When impersonating another user using RSS tokens, an error was displayed, but block information relevant to the person being impersonated was shown." [4] CVE-2013-2246: "The Feedback module was showing personal information to users without the needed capability" [5] MITIGATION The vendor has stated that these issues have been corrected in versions 2.5.1, 2.4.5, 2.3.8 and 2.2.11. [1, 2, 3, 4, 5] REFERENCES [1] MSA-13-0027: Access issue in Chat module https://moodle.org/mod/forum/discuss.php?d=232498 [2] MSA-13-0028: Answer information revealed in Lesson activity https://moodle.org/mod/forum/discuss.php?d=232500 [3] MSA-13-0029: XSS risk in conditional activities https://moodle.org/mod/forum/discuss.php?d=232501 [4] MSA-13-0030: Information leak through RSS https://moodle.org/mod/forum/discuss.php?d=232502 [5] MSA-13-0031: Personal information leak in Feedback activity https://moodle.org/mod/forum/discuss.php?d=232503 AusCERT has made every effort to ensure that the information contained in this document is accurate. However, the decision to use the information described is the responsibility of each user or organisation. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBUeX12hLndAQH1ShLAQKwTg/9He9TCMrJiYoVSBqvjcDYNPVMBmYURMNR K+ROlL3HgYyPAG16o2mmAW26f/kq00Fr2Xzj2wXjZBSFs5g4NnRY+zgSQ5pA9sAL iogo1N+PlBXA7TmBb5VrU0NJ/x7kHMdkC7os3NaOn3GrK6eYtJ52VqIrzZjVmYBZ IxRyA1h3IMG/vZ4I8HEWvvyyip0W84klKFKDYCJYrCl7JA4iPQTglvCxpeU4UHx+ ZYh+XbeiARg6WVWOIih88qlGQMzbkSvBiOjRea3K/7l0yEGMiRcEV8Vf6LMldpUK QNd5TWoliygQip3B9m5X2BH9/2ajJeUcX8Z1gfxNjKL8/aydTC0qHVAuxw3gYJmS McrUKalmAQGSbJBdfm0GYfZpa3vtmaXudROMRK+bpcQ/vjwbXNwKksd3jABhgBwT WpLtLr9axD+megQuLBQVwqP+LYBmZnsLsHo/3AEn/oYiVRlKrLzHX9LuKU3O47k9 7YCf3JrkzSEoxaoZjrsSSlbmnXV0aVefG1OK4HpCdRo51I4Kx0DP8HcA+/0yZ5Os ddS2LeUzz90lBvms0gOOTlyQasgt1VhqXYcvC89KPlyyAVrnFAHJYbSIJzDDpAZl BISa+iU3yVy0IuKODCLJtdrgwgUO7l/TaaWbgmeszmA8oQO7GtaqjtgYqkXBC44K D7fqpM/27sg= =YWO5 -----END PGP SIGNATURE-----