Multiple vulnerabilities in Revive Adserver
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-5433 CVE-2019-5434 |
| CWE-ID | CWE-601 CWE-502 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #2 is available. |
| Vulnerable software Subscribe |
Revive Adserver Web applications / Other software |
| Vendor | OpenX Source |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Open redirect
EUVDB-ID: #VU35941
Risk: Low
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-5433
CWE-ID:
CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to read and manipulate data.
A user having access to the UI of a Revive Adserver instance could be tricked into clicking on a specifically crafted admin account-switch.php URL that would eventually lead them to another (unsafe) domain, potentially used for stealing credentials or other phishing attacks. This vulnerability was addressed in version 4.2.0.
MitigationInstall update from vendor's website.
Vulnerable software versionsRevive Adserver: 4.0.0 - 4.1.4
External linkshttp://hackerone.com/reports/390663
http://www.revive-adserver.com/security/revive-sa-2019-001/
Q & A
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.
2) Deserialization of Untrusted Data
EUVDB-ID: #VU35942
Risk: High
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-5434
CWE-ID:
CWE-502 - Deserialization of Untrusted Data
Exploit availability: Yes
DescriptionThe vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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.
MitigationInstall update from vendor's website.
Vulnerable software versionsRevive Adserver: 4.0.0 - 4.1.4
External linkshttp://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html
http://hackerone.com/reports/512076
http://hackerone.com/reports/542670
http://www.revive-adserver.com/security/revive-sa-2019-001/
Q & A
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. However, proof of concept for this vulnerability is available.
