Vulnerability identifier: #VU14491

Vulnerability risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-16

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 attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper configuration of ViewState settings (if ViewState is configured to use unencrypted state information). A remote unauthenticated attacker can execute arbitrary code residing in the target server's classpath.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

IBM WebSphere Application Server: 7.0.0.0 - 7.0.0.45, 8.0.0.0 - 8.0.0.15, 8.5.0.0 - 8.5.5.14

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External links
http://www-01.ibm.com/support/docview.wss?uid=ibm10716525

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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.