The OWASP ModSecurity Core Rule Set (CRS) team has identified a Denial of Service vulnerability in the underlying ModSecurity engine. This affects all releases in the ModSecurity v3 release line. The vendor Trustwave Spiderlabs did not release an update yet. However, we are providing users with a patch for ModSecurity and a workaround if they …
CVE-2020-15598 – ModSecurity v3 Affected By DoS (Severity HIGH) Read More »
We are back with the CRS project news. There was not too much to talk about in recent weeks, but now there is real content. So here we go. What has happened in recent weeks Security researcher Somdev Sangwan has looked into Regular Expression Denial of Service attacks. It is a more or less well …
Somdev Sangwan has discovered several Regular Expression Denial of Service (ReDoS) weaknesses in the rules provided by the CRS project. They are listed under the following CVEs: CVE-2019–11387 CVE-2019–11388 CVE-2019–11389 CVE-2019–11390 CVE-2019–11391 The fact that CRS is affected by ReDoS is not particularly surprising and truth be told, we knew that was the case. We …