#VU13038 XXE attack in Apache Nifi - CVE-2018-1309

Vulnerability identifier: #VU13038

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-1309

CWE-ID: CWE-611

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Nifi
Server applications / Database software

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to conduct XXE-attack on the target system.

The vulnerability exists due to improper parsing of XML content by the SplitXML processor. A remote attacker can send a specially crafted request that submits malicious XML content to the targeted system and execute arbitrary code or access sensitive information on the system, which could be used to conduct further attacks.

Mitigation
Update to version 1.6.

Vulnerable software versions

Apache Nifi: 0.1 - 1.5

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External links
https://nifi.apache.org/security.html#CVE-2018-1309

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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.