Vulnerability identifier: #VU31058
Vulnerability risk: High
Exploitation vector: Network
Exploit availability: No
Vendor: OpenX Source
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Use of cryptographically weak PRNG in the password recovery token generation of Revive Adserver < v4.2.1 causes a potential authentication bypass attack if an attacker exploits the password recovery functionality. In lib/OA/Dal/PasswordRecovery.php, the function generateRecoveryId() generates a password reset token that relies on the PHP uniqid function and consequently depends only on the current server time, which is often visible in an HTTP Date header.
Install update from vendor's website.
Vulnerable software versions
Revive Adserver: 4.2.0
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.