Advisory Details

October 22nd, 2020

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

ZDI-20-1274
ZDI-CAN-10818

CVE ID CVE-2020-14841
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 Server
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 handling of the IIOP protocol. Crafted data in a IIOP protocol message can trigger the 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/cpuoct2020.html
DISCLOSURE TIMELINE
  • 2020-06-03 - Vulnerability reported to vendor
  • 2020-10-22 - Coordinated public release of advisory
CREDIT LE XUAN TUYEN - VNPT ISC
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