Re: CVE-2018-8733, CVE-2018-8734, CVE-2018-8735

[Phillip Lee <phillile () sourcefire com>]

Yaser,

Thanks for your submission. We will review the rules and get back to you when they're finished. 

Can you send along the pcaps that you have? 

Regards,
Phil Lee
Cisco Talos

> On May 1, 2018, at 9:24 AM, Y M via Snort-sigs <snort-sigs () lists snort org> wrote:
>
> Hi,
>
> The below rules are for detecting exploit attempts against the listed CVEs. Pcap is available for this one.
>
> # Date: 2018-05-01
> # Title: CVE-2018-873X - NagiosXI Vulnerability Chaining; Death By a Thousand Cuts
> # Reference: http://blog.redactedsec.net/exploits/2018/04/26/nagios.html 
> <http://blog.redactedsec.net/exploits/2018/04/26/nagios.html>, https://www.exploit-db.com/exploits/44560/ 
> <https://www.exploit-db.com/exploits/44560/>
> # CVEs: CVE-2018-8733, CVE-2018-8734, CVE-2018-8735
> # Tests: pcap
>
> alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"SERVER-WEBAPP NagiosXI unauthenticated SQL injection 
> attempt"; flow:to_server,established; content:"POST"; http_method; content:"/nagiosql/admin/helpedit.php"; 
> fast_pattern:only; http_uri; content:"selInfoKey1="; http_client_body; content:"union"; nocase; http_client_body; 
> content:"select"; nocase; http_client_body; metadata:ruleset community, service http; reference:cve,2018-8734; 
> reference:url,blog.redactedsec.net/exploits/2018/04/26/nagios.html 
> <http://blog.redactedsec.net/exploits/2018/04/26/nagios.html>; reference:url,www.exploit-db.com/exploits/44560/ 
> <http://www.exploit-db.com/exploits/44560/>; classtype:attempted-admin; sid:8000033; rev:1;)
> alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"SERVER-WEBAPP NagiosXI unauthenticated authentication 
> bypass attempt"; flow:to_server,established; content:"POST"; http_method; content:"/nagiosql/admin/settings.php"; 
> fast_pattern:only; http_uri; content:"txtRootPath="; http_client_body; content:"&txtDBserver="; http_client_body; 
> content:"&txtDBname="; http_client_body; content:"&txtDBuser="; http_client_body; reference:cve,2018-8733; 
> reference:url,blog.redactedsec.net/exploits/2018/04/26/nagios.html 
> <http://blog.redactedsec.net/exploits/2018/04/26/nagios.html>; reference:url,www.exploit-db.com/exploits/44560/ 
> <http://www.exploit-db.com/exploits/44560/>; classtype:attempted-admin; sid:8000034; rev:1;)
> alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"SERVER-WEBAPP NagiosXI authenticated command injection 
> attempt"; flow:to_server,established; content:"POST"; http_method; content:"/nagiosxi/backend/index.php?"; 
> fast_pattern:only; http_uri; content:"command_data="; http_uri; content:"&cmd=submitcommand"; http_uri; 
> content:"&command="; http_uri; content:"nagiosxi="; http_cookie; reference:cve,2018-8735; 
> reference:url,blog.redactedsec.net/exploits/2018/04/26/nagios.html 
> <http://blog.redactedsec.net/exploits/2018/04/26/nagios.html>; reference:url,www.exploit-db.com/exploits/44560/ 
> <http://www.exploit-db.com/exploits/44560/>; classtype:attempted-admin; sid:8000035; rev:1;)
>
> Thanks.
> YM
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