Advisory Details

May 4th, 2018

Trend Micro Encryption for Email Gateway DBCrypto Authentication Weakness Vulnerability

ZDI-18-411
ZDI-CAN-5513

CVE ID CVE-2018-10355
CVSS SCORE 1.9, AV:L/AC:M/Au:N/C:P/I:N/A:N
AFFECTED VENDORS Trend Micro
AFFECTED PRODUCTS Encryption for Email Gateway
VULNERABILITY DETAILS


This vulnerability allows attackers to recover user passwords on vulnerable installations of Trend Micro Encryption for Email Gateway. An attacker must first obtain access to the user database on the target system in order to exploit this vulnerability.

The specific flaw exists within the DBCrypto class. When storing user passwords, the process stores them in a recoverable format using a hard-coded key. An attacker can then leverage this vulnerability to decrypt existing passwords.
ADDITIONAL DETAILS Trend Micro has issued an update to correct this vulnerability. More details can be found at:
https://success.trendmicro.com/solution/1119349
DISCLOSURE TIMELINE
  • 2018-01-02 - Vulnerability reported to vendor
  • 2018-05-04 - Coordinated public release of advisory
  • 2018-05-04 - Advisory Updated
CREDIT Steven Seeley of Source Incite
BACK TO ADVISORIES