Zero-day vulnerability in Oracle Database Server

Spoofing attack

Joxean Koret discovered this vulnerability in 2008 and publicly disclosed in 2012.

The vulnerability was used in "TNS Listener Poison Attack"

Vulnerability details

Advisory: SB2012041801 - TNS Listener Poisoning Attack in Oracle Database

Vulnerable component: Oracle Database Server

CVE-ID: CVE-2012-1675

CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:F/RL:O/RC:C

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')


The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to an error in the TNS listener service. A remote attacker can register an existing instance or service name, use man-in-the-middle techniques and read, inject or modify transmitted data.

Successful exploitation of this vulnerability may result in unauthorized access to entire database.

Note: the vulnerability was being actively exploited.