Vulnerability identifier: #VU15993

Vulnerability risk: Medium

CVSSv3.1: 8.3 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-17190

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Apache Spark
Server applications / Frameworks for developing and running applications

Vendor: Apache Foundation

Description

The vulnerability allows an adjacent attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper security restrictions and insufficient validation of user-supplied input. An adjacent attacker with access to a Spark standalone cluster can send a specially crafted request that submits malicious input and execute arbitrary code on the master host, which could be used to conduct further attacks.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Apache Spark: 2.4.0, 2.3.0 - 2.3.2, 2.2.0 - 2.2.2, 2.1.0 - 2.1.3, 2.0.0 - 2.0.2, 1.6.0 - 1.6.3, 1.5.0 - 1.5.2, 1.4.0 - 1.4.1, 1.3.0 - 1.3.1, 1.2.0 - 1.2.1, 1.1.0 - 1.1.1, 1.0.0 - 1.0.2

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External links
http://spark.apache.org/security.html

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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