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Revive Adserver Security Advisory REVIVE-SA-2020-002
Vulnerability 1 – Security restriction bypass
DescriptionA security restriction bypass vulnerability has been discovered by HackerOne user hoangn144. Revive Adserver, like many other applications, requires the logged in user to type the current password in order to change the e-mail address or the password. It was however possible for anyone with access to a Revive Adserver admin user interface to bypass such check and change e-email address or password of the currently logged in user by altering the form payload. DetailsThe attack requires physical access to the user interface of a logged in user. If the POST payload was altered by turning the “pwold” parameter into an array, Revive Adserver would fetch and authorise the operation even if no password was provided. ReferencesPlease use these links to obtain additional information: Vulnerability 2 – Open Redirect
DescriptionAn Open Redirect vulnerability was discovered and reported by HackerOne user hoangn144. A remote attacker could trick logged-in users to open a specifically crafted link and have them redirected to any destination. DetailsThe CSRF protection of the “/www/admin/*-modify.php” could be skipped if no meaningful parameter was sent. No action was performed, but the user was still redirected to the target page, specified via the “returnurl” GET parameter. ReferencesPlease use these links to obtain additional information: SolutionWe strongly advise people to upgrade to the most recent version 5.0.5 of Revive Adserver. |
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