SB2017032813 - Multiple vulnerabilities in Revive Adserver
Published: March 28, 2017 Updated: August 8, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Security Features (CVE-ID: CVE-2016-9470)
The vulnerability allows a remote authenticated user to execute arbitrary code.
Revive Adserver before 3.2.5 and 4.0.0 suffers from Reflected File Download. `www/delivery/asyncspc.php` was vulnerable to the fairly new Reflected File Download (RFD) web attack vector that enables attackers to gain complete control over a victim's machine by virtually downloading a file from a trusted domain.
2) Input validation error (CVE-ID: CVE-2016-9471)
The vulnerability allows a remote privileged user to read and manipulate data.
Revive Adserver before 3.2.5 and 4.0.0 suffers from Special Element Injection. Usernames weren't properly sanitised when creating users on a Revive Adserver instance. Especially, control characters were not filtered, allowing apparently identical usernames to co-exist in the system, due to the fact that such characters are normally ignored when an HTML page is displayed in a browser. The issue could have therefore been exploited for user spoofing, although elevated privileges are required to create users within Revive Adserver. <a href="http://cwe.mitre.org/data/definitions/75.html">CWE-75: Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)</a>
3) Cross-site scripting (CVE-ID: CVE-2016-9472)
The vulnerability allows a remote authenticated user to read and manipulate data.
Revive Adserver before 3.2.5 and 4.0.0 suffers from Reflected XSS. The Revive Adserver web installer scripts were vulnerable to a reflected XSS attack via the dbHost, dbUser, and possibly other parameters. It has to be noted that the window for such attack vectors to be possible is extremely narrow and it is very unlikely that such an attack could be actually effective.
Remediation
Install update from vendor's website.
References
- https://github.com/revive-adserver/revive-adserver/commit/69aacbd2
- https://hackerone.com/reports/148745
- https://www.revive-adserver.com/security/revive-sa-2016-002/
- https://github.com/revive-adserver/revive-adserver/commit/05b1eceb
- https://hackerone.com/reports/128181
- https://github.com/revive-adserver/revive-adserver/commit/14ff73f0
- https://github.com/revive-adserver/revive-adserver/commit/fcf72c8a
- https://hackerone.com/reports/170156