CVE-2019-5434
CVSS v3
9.8
CRITICAL
EPSS Score
91.9 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2019-05-06
- Exploit-DB
- EDB-47739
Frequently asked questions
What is CVE-2019-5434?
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.
Is CVE-2019-5434 actively exploited?
Active exploitation of CVE-2019-5434 has not been confirmed. The EPSS score is 91.9%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-5434?
CVE-2019-5434 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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