Denial of service in IBM WebSphere Application Server

1) Resource exhaustion

EUVDB-ID: #VU59281

Risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-38951

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can send a specially crafted request to the web server, consume all available CPU resources and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IBM WebSphere Application Server: 7.0 - 9.0.5.10

CPE2.3

• cpe:2.3:a:ibm_corporation:ibm_websphere_application_server:7.0.0.45:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:ibm_websphere_application_server:8.0.0.15:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:ibm_websphere_application_server:8.5.5.20:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:ibm_websphere_application_server:9.0.5.10:*:*:*:*:*:*:*

External links

https://www.ibm.com/support/pages/node/6524674

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.