MSA-19-0025: Add additional verification for some OAuth 2 logins to prevent account compromise

by Michael Hawkins.  

OAuth 2 providers who do not verify users' email address changes require additional verification during sign-up to reduce the risk of account compromise.


Severity/Risk:Serious
Versions affected:3.7 to 3.7.2, 3.6 to 3.6.6, 3.5 to 3.5.8 and earlier unsupported versions
Versions fixed:3.7.3, 3.6.7 and 3.5.9
Reported by:CeDiS Team
Workaround:Disable login via OAuth 2 providers that may be affected, until the patch is applied.
CVE identifier:CVE-2019-14880
Changes (master):http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-66598
Tracker issue:MDL-66598 Add additional verification for some OAuth 2 logins to prevent account compromise

Read more https://moodle.org/mod/forum/discuss.php?d=393583&parent=1586744