1 / 12

Vulnerability Scan Assessment

Vulnerability Scan Assessment. CS/IT 463 Bryan Dean Jonathan Ammons. Scanners. Tenable Nessus GFI LANGuard Nmap eEye Retina 5 Shadow Security Scanner. Network. Scanned CS network, IP range 129.138.6.0-255 Scanners found between 30-47 hosts active

hayes-levine
Télécharger la présentation

Vulnerability Scan Assessment

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Vulnerability Scan Assessment CS/IT 463 Bryan Dean Jonathan Ammons

  2. Scanners • Tenable Nessus • GFI LANGuard • Nmap • eEye Retina 5 • Shadow Security Scanner

  3. Network • Scanned CS network, IP range 129.138.6.0-255 • Scanners found between 30-47 hosts active • Low host count could be attributed to the timing of our scans, after 5 pm.

  4. Results • All together, scanners found 87 vulnerabilities on scanned hosts • Critical: 4, High: 40, Medium: 11, Low: 11 (Only one scanner gave the ‘critical’ rating) • Some vulnerabilities given different CVSS ratings by different scanners.

  5. Analysis Methods • Wrote unique parser in perl for each scanner’s output. • Parse results were standardized. • Standardized results were consolidated using another perl script. • Output to a comma delimited file.

  6. Majority Voting • Looked for same vulnerability found by different scanners on same machine • Only two vulnerabilities were identified by more then one scanner on the same machine.

  7. Criticality Voting • 4 critical vulnerabilities on 4 hosts. • 40 high vulnerabilities on 25 hosts. • 11 medium vulnerabilities on 11 hosts. • 32 low vulnerabilities on 32 hosts.

  8. SANS Top Twenty • Created a list of 2006 SANS top twenty CVE codes. • A script compared that list to our vulnerability found lists. • Only 1 vulnerability that we found was on the SANS top twenty: CVE-2006-3439

  9. Metasploit • Didn’t want to use Metasploit on the CS network. • Ran Nessus on our private network, then used that data to use Metasploit for most likely vulnerability. • Weren’t able to penetrate. • Completely Manual.

  10. Discussion of Scanners • Nessus and Retina gave CVE codes for vulnerabilities found • Nessus, Retina, and GFI Languard gave Bugtraq codes for some vulnerabilties found • NMap gave only port information, no real vulnerabilties • Shadow Security Scanner didn’t give meangingful data.

  11. Final Process • Scanner creates individual output file • Scanner output is parsed into our own standardized format • Parsed output from multiple scanners is consolidated by hand using Excel, then outputted to comma-deliminated file. • Final analysis (criticality, majority, and SANS top twenty) are performed by final scripts.

  12. Questions?

More Related