#VU81699 Inefficient regular expression complexity in AngularJS
Vulnerability identifier: #VU81699
Vulnerability risk: Medium
CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-1333
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
AngularJS
Web applications /
JS libraries
Vendor: Google
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 untrusted input with a regular expressions in the input[url] functionality. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
AngularJS: 1.4.9 - 1.8.3
External links
http://stackblitz.com/edit/angularjs-vulnerability-inpur-url-validation-redos
http://security.snyk.io/vuln/SNYK-JS-ANGULAR-3373046
http://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBANGULAR-5406328
http://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-5406327
http://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-5406326
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.
