Information disclosure in Zabbix Server

1) Information disclosure

EUVDB-ID: #VU11859

Risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2017-2826

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

The weakness exists in the iConfig proxy request feature due to improper handling of iConfig proxy requests. A remote attacker can submit customized iConfig proxy request packets and gain access to potentially sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Zabbix: 2.4.0 - 2.4.8.r1

CPE2.3

• cpe:2.3:a:zabbix:zabbix:2.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:zabbix:zabbix:2.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:zabbix:zabbix:2.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:zabbix:zabbix:2.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:zabbix:zabbix:2.4.4:*:*:*:*:*:*:*
• cpe:2.3:a:zabbix:zabbix:2.4.5:*:*:*:*:*:*:*
• cpe:2.3:a:zabbix:zabbix:2.4.6:*:*:*:*:*:*:*
• cpe:2.3:a:zabbix:zabbix:2.4.7:*:*:*:*:*:*:*
• cpe:2.3:a:zabbix:zabbix:2.4.8.r1:*:*:*:*:*:*:*

External links

https://talosintelligence.com/vulnerability_reports/TALOS-2017-0327

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.