Incorrect regular expression in Html-parse-stringify - CVE-2021-23346
Published: May 16, 2023
Vulnerability identifier: #VU76187
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2021-23346
CWE-ID: CWE-185
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Affected software
Html-parse-stringify
IBM Cloud Pak System
IBM Edge Application Manager
IBM Security QRadar Analyst Workflow
IBM Cloud Pak System
IBM Edge Application Manager
IBM Security QRadar Analyst Workflow
How to mitigate CVE-2021-23346
Install updates from vendor's website.
Html-parse-stringify - update to 2.0.1
IBM Cloud Pak System - update to 2.3.3.6
IBM Security QRadar Analyst Workflow - update to 2.31.4
IBM Cloud Pak System - update to 2.3.3.6
IBM Security QRadar Analyst Workflow - update to 2.31.4
External References
- https://github.com/HenrikJoreteg/html-parse-stringify/blob/master/lib/parse.js%23L2
- https://github.com/HenrikJoreteg/html-parse-stringify/commit/c7274a48e59c92b2b7e906fedf9065159e73fe12
- https://github.com/rayd/html-parse-stringify2/blob/master/lib/parse.js%23L2
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1080633
- https://snyk.io/vuln/SNYK-JS-HTMLPARSESTRINGIFY-1079306
- https://snyk.io/vuln/SNYK-JS-HTMLPARSESTRINGIFY2-1079307