Vulnerability identifier: #VU24938

Vulnerability risk: Medium

CVSSv3.1: 5.8 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-4163

CWE-ID: CWE-77

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 execute arbitrary commands on the system.

The vulnerability exists due to improper input validation. A remote administrator can send a specially crafted file name which would be misinterpreted as jsp content and execute arbitrary commands.

Mitigation

Vendor recommends to install the following updates:

• For V9.0.0.0 through 9.0.5.2:

Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH20785
--OR--
Apply Fix Pack 9.0.5.3 or later (targeted availability 1Q2020).

• For V8.5.0.0 through 8.5.5.16:

Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH20785
--OR--
Apply Fix Pack 8.5.5.17 or later (targeted availability 1Q2020).

• For V8.0.0.0 through 8.0.0.15:

Upgrade to 8.0.0.15 and then apply Interim Fix PH20785
 

Vulnerable software versions

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

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External links
http://exchange.xforce.ibmcloud.com/vulnerabilities/174397
http://www.ibm.com/support/pages/node/1288786

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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