#VU6861 Information disclosure in IBM Domino - CVE-2016-6087

Vulnerability identifier: #VU6861

Vulnerability risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-6087

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM Domino
Client/Desktop applications / Messaging software

Vendor: IBM Corporation

Description
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to Diffie-Hellman (DH) parameter validation flaw in the TLS server. A remote attacker can create multiple key exchange sessions to lessen secure connection on the system and gain access to authentication credentials.

Successful exploitation of the vulnerability results in information disclosure.

Mitigation
Update to version 9.0.1 FP8.

Vulnerable software versions

IBM Domino: 8.5.1 - 9.0.1

---

External links
https://www-01.ibm.com/support/docview.wss?uid=swg22002808

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.