At this point, we are seeing the scans slow down a bit. But they have reached "saturation" meaning that all IPv4 addresses have been scanned for this vulnerability. If you find a vulnerable server in your network: Assume it has been compromised. Just about a week ago, as part of a massive quarterly "Critical Patch Update" (aka "CPU"), Oracle patched CVE-2020-14882 in WebLogic. Oracle at the time assigned it a CVSS score of 9.8. We are now seeing active exploitation of the vulnerability against our honeypot after PoC exploits had been published. Vulnerable WebLogic Versions: 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0 The exploitation of the vulnerability is trivial. For example, we are seeing these exploits being currently used: [the honeypot's IP has been replaced with AAA.BBB.CCC.DDD. Spaces added to allow for line breaks ]
These exploit attempts are right now just verifying if the system is vulnerable. Our honeypots (up to now) do not return the "correct" response, and we have not seen follow-up requests yet. Currently, exploit attempts originate from these 4 IP addresses:
I am in the process of notifying the ISPs. The exploit appears to be based on this blog post published in Vietnamese by "Jang": https://testbnull.medium.com/weblogic-rce-by-only-one-get-request-cve-2020-14882-analysis-6e4b09981dbf
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Johannes 4508 Posts ISC Handler Oct 29th 2020 |
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Oct 29th 2020 1 year ago |
We have seen attempts to exploit and pull down and execute hxxp://a[.]b[.]c[.]d[.]xmring[.]com/update.exe
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Anonymous |
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Oct 29th 2020 1 year ago |
Quick question. For this exploit to occur, the console would need to be exposed externally correct? The console by default is advertised out via ports 7001/7002 as per Oracle documentation. So if the console is NOT reachable via the internet, then the vulnerability from that perspective is not present correct?
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Anonymous |
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Oct 30th 2020 1 year ago |
Quoting Anonymous:Quick question. For this exploit to occur, the console would need to be exposed externally correct? The console by default is advertised out via ports 7001/7002 as per Oracle documentation. So if the console is NOT reachable via the internet, then the vulnerability from that perspective is not present correct? Right! But don't ignore any potential insider threat! If one of your computers is compromised and the attacker tries to pivot internally, he could exploit the Weblogic server. |
Xme 697 Posts ISC Handler |
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Oct 30th 2020 1 year ago |
Yes, understood. Just needed to verify the external exposure.
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Anonymous |
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Oct 30th 2020 1 year ago |
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