Vulnerability identifier: #VU15972

Vulnerability risk: High

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

CVE-ID: CVE-2018-8009

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Hadoop
Server applications / Frameworks for developing and running applications

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to conduct a directory traversal attack on the target system.

The vulnerability exists due to improper validation of files inside an archive file. A remote unauthenticated attacker can trick the victim into extracting a zip file that contains files that use directory traversal characters, cause a malicious file to be created outside the current working directory and cause a denial of service (DoS) condition or execute arbitrary code by overwriting other files on the system.

Successful exploitation of the vulnerability may result in system compromise.

Note: the vulnerability has been dubbed "Zip Slip".

Mitigation
The vulnerability has been fixed in the versions 3.1.1, 3.0.3, 2.8.5, and 2.7.7.

Vulnerable software versions

Hadoop: 2.2 - 3.1.0

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External links
http://hadoop.apache.org/cve_list.html#cve-2018-8009-http-cve-mitre-org-cgi-bin-cvename-cgi-name-cv...

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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.