Denial of service in IBM Security QRadar Network Threat Analytics

1) Incorrect Regular Expression

EUVDB-ID: #VU50430

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-28493

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

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

The vulnerability exists due to incorrect subpattern applied to untrusted input. A remote attacker can pass specially crafted data to the application and perform a regular expression DoS (ReDOS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Security QRadar Network Threat Analytics: before 1.1.0

External links

http://www.ibm.com/blogs/psirt/security-bulletin-ibm-security-qradar-network-threat-analytics-uses-component-jinja2-with-a-denial-of-service-vulnerability-cve-2020-28493/
http://www.ibm.com/support/pages/node/6618757

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.