#VU98132 Inefficient regular expression complexity in path-to-regexp
Vulnerability identifier: #VU98132
Vulnerability risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-1333
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
path-to-regexp
Web applications /
JS libraries
Vendor: pillarjs
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. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
path-to-regexp: 0.0.2 - 7.2.0
External links
http://github.com/pillarjs/path-to-regexp/security/advisories/GHSA-9wv6-86v2-598j
http://github.com/pillarjs/path-to-regexp/commit/29b96b4a1de52824e1ca0f49a701183cc4ed476f
http://github.com/pillarjs/path-to-regexp/commit/60f2121e9b66b7b622cc01080df0aabda9eedee6
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.
