#VU85172 Incorrect Regular Expression in Handsontable - CVE-2021-23446

Vulnerability identifier: #VU85172

Vulnerability risk: Medium

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:Green]

CVE-ID: CVE-2021-23446

CWE-ID: CWE-185

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Handsontable
Web applications / JS libraries

Vendor: Handsontable

Description

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

The vulnerability exists due to insufficient input validation when processing regular expressions in the Handsontable.helper.isNumeric function. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Handsontable: before 10.0.0

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External links
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBHANDSONTABLE-1726794
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1726795
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1726796
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1726797
https://snyk.io/vuln/SNYK-JS-HANDSONTABLE-1726770
https://github.com/handsontable/handsontable/issues/8752
https://snyk.io/vuln/SNYK-DOTNET-HANDSONTABLE-1726793
https://github.com/handsontable/handsontable/pull/8742

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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.