vendor:
Openlitespeed
by:
Denis Andzakovic
7.5
CVSS
HIGH
Use After Free
416
CWE
Product Name: Openlitespeed
Affected Version From: 1.3.2009
Affected Version To: 1.3.2009
Patch Exists: YES
Related CWE: N/A
CPE: a:openlitespeed:openlitespeed:1.3.9
Metasploit:
N/A
Other Scripts:
N/A
Tags: N/A
CVSS Metrics: N/A
Nuclei References:
N/A
Nuclei Metadata: N/A
Platforms Tested: None
2015
Openlitespeed 1.3.9 Use After Free denial of service exploit
This exploit triggers a denial of service condition within the Openlitespeed web server. This is achieved by sending a tampered request contain a large number (91) of 'a: a' header rows. By looping this request, a memmove call within the HttpReq class is triggered with a freed pointer, resulting in a reference to an invalid memory location and thus a segmentation fault.
Mitigation:
Ensure that all Openlitespeed web server versions are up to date and patched.