Attackers are actively exploiting a DoS vulnerability (CVE-2015-1635) affecting Microsoft's Internet Information Services (IIS) extensible web server, SANS ISC CTO Johannes Ullrich warns, and urges administrators to close the hole as soon as possible.
The patch for the flaw was released by
Microsoft on Tuesday.
"In its
advisory, Microsoft considered the vulnerability as a remote code execution vulnerability. But at this point, no exploit has been made public that executed code. Only DoS exploits are available," noted Ullrich.