#VU99601 Path traversal in IBM WebSphere Application Server - CVE-2020-5016

Vulnerability identifier: #VU99601

Vulnerability risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-5016

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM WebSphere Application Server
Server applications / Application servers

Vendor: IBM Corporation

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote user can send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary xml files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IBM WebSphere Application Server: 7.0, 8.0, 8.5, 9.0

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External links
https://exchange.xforce.ibmcloud.com/vulnerabilities/193556
https://www.ibm.com/support/pages/node/6427873

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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