Vulnerability identifier: #VU75786
Vulnerability 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:
CWE-ID:
CWE-185
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
rails-html-sanitizer
Universal components / Libraries /
Programming Languages & Components
Vendor: Rails
Description
The vulnerability allows a remote attacker to perform DoS attack.
The vulnerability exists due to usage of an incorrect regular expression to parse SVG attributes. A remote attacker can pass a specially crafted SVG image to the application and consume excessive CPU resources.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
rails-html-sanitizer: 1.4.0 - 1.4.3
External links
http://hackerone.com/reports/1684163
http://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w
http://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979
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.