Ethical Hacking Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package. | Computer Forensics Training at InfoSec Institute Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors. |

| Subject: | Re: [Snort-sigs] False negative in 3087.1 (WEB-IIS w3who.dll buffer overflow attempt) |
|---|---|
| Date: | Tue, 25 Jan 2005 10:35:52 -0500 |
On Tue, Jan 25, 2005 at 12:25:25AM -0700, nnposter wrote:
I am not sure that it needs to use the URI buffer to identify a long URI.
Could it not use uriconent to verify that w3who.dll is present and then
a non-URI PCRE looking for a long HTTP request line (but not necessarily
verifying that it includes w3who.dll)? Something like
/^\s*[A-Z]+ +[^ \n]{519}/m
That generates false positives on various pcap I have laying around :( The proper thing is to fix the http inspect profile for IIS. Brian ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ Snort-sigs mailing list Snort-sigs@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/snort-sigs
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: [Snort-sigs] L3Retriever false positives, Nigel Houghton |
|---|---|
| Next by Date: | Re: [Snort-sigs] Awstats Remote Code Execution, Frank Knobbe |
| Previous by Thread: | Re: [Snort-sigs] False negative in 3087.1 (WEB-IIS w3who.dll buffer overflow attempt), nnposter |
| Next by Thread: | Re: [Snort-sigs] False negative in 3087.1 (WEB-IIS w3who.dll buffer overflow attempt), Matt Kettler |
| Indexes: | [Date] [Thread] [Top] [All Lists] |