Vulnerability Description
An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter in the "openads.spc" RPC method. Such vulnerability could be used to perform various types of attacks, e.g. exploit serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third party websites. This vulnerability was addressed in version 4.2.0.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Revive-Sas | Revive Adserver | < 4.2.0 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Exec
- https://hackerone.com/reports/512076Third Party Advisory
- https://hackerone.com/reports/542670Third Party Advisory
- https://www.revive-adserver.com/security/revive-sa-2019-001/Vendor Advisory
- http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Exec
- https://hackerone.com/reports/512076Third Party Advisory
- https://hackerone.com/reports/542670Third Party Advisory
- https://www.revive-adserver.com/security/revive-sa-2019-001/Vendor Advisory
FAQ
What is CVE-2019-5434?
CVE-2019-5434 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter in the "openads.spc" RPC method. Such vulnerability co...
How severe is CVE-2019-5434?
CVE-2019-5434 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2019-5434?
Check the references section above for vendor advisories and patch information. Affected products include: Revive-Sas Revive Adserver.