Advisory Details

April 30th, 2020

Oracle WebLogic Server T3 Protocol Deserialization of Untrusted Data Remote Code Execution Vulnerability

ZDI-20-570
ZDI-CAN-10492

CVE ID CVE-2020-2883
CVSS SCORE 9.8, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Oracle
AFFECTED PRODUCTS WebLogic
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Oracle WebLogic. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the Oracle Coherence library. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account.
ADDITIONAL DETAILS Oracle has issued an update to correct this vulnerability. More details can be found at:
https://www.oracle.com/security-alerts/cpuapr2020.html
DISCLOSURE TIMELINE
  • 2020-03-15 - Vulnerability reported to vendor
  • 2020-04-30 - Coordinated public release of advisory
CREDIT Quynh Le of VNPT ISC
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