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User who did this - Andrew Pogrebennyk (marduk)
Attached to Project - sip-router
Summary - Sanity checks lets invalid RURI through
Task Type - Bug Report
Category - Module
Status - Unconfirmed
Assigned To -
Operating System - Linux
Severity - Low
Priority - Normal
Reported Version - 3.3
Due in Version - Undecided
Due Date - Undecided
Details - We are using message and URI checks in sanity module:
if(!sanity_check("1511", "7"))
{
xlog("L_WARN", "Malformed SIP message deteted - R=$ru
ID=$ci\n");
sl_send_reply("483","Malformed SIP Message");
exit;
}
We've found that if the request comes in with broken RURI, the result of sanity check
is still 1 which means passed:
Jan 8 12:31:26 sp2 /usr/sbin/kamailio[1121]: INFO: <script>: New request - M=INVITE
R=sip:%3A03581313184:03581313184@192.168.51.16 F=sip:43991001@192.168.51.16
T=sip:%3A03581313184:03581313184@192.168.51.16 IP=192.168.51.1:39851 (127.0.0.1:5060)
ID=vGo5pfQRI9hwaVUAhcc4gZcXgl5jIHDr
Jan 8 12:31:26 sp2 /usr/sbin/kamailio[1121]: DEBUG: maxfwd [mf_funcs.c:85]: value = 69
Jan 8 12:31:26 sp2 /usr/sbin/kamailio[1121]: DEBUG: sanity [mod_sanity.c:255]: sanity
checks result: 1
Jan 8 12:31:26 sp2 /usr/sbin/kamailio[1121]: DEBUG: rr [loose.c:111]: No Route headers
found
Jan 8 12:31:26 sp2 /usr/sbin/kamailio[1121]: DEBUG: rr [loose.c:835]: There is no Route
HF
Jan 8 12:31:26 sp2 /usr/sbin/kamailio[1121]: DEBUG: <core> [strcommon.c:224]:
unescaped string is <:03581313184>
Jan 8 12:31:26 sp2 /usr/sbin/kamailio[1121]: DEBUG: <core>
[parser/parse_uri.c:1259]: parse_uri: bad char ':' in state 0 parsed: <sip:>
(4) / <sip::03581313184:03581313184@192.168.51.16> (42)
Jan 8 12:31:26 sp2 /usr/sbin/kamailio[1121]: DEBUG: <core>
[parser/parse_uri.c:1327]: ERROR: parse_sip_msg_uri: bad uri
<sip::03581313184:03581313184@192.168.51.16>
Jan 8 12:31:26 sp2 /usr/sbin/kamailio[1121]: ERROR: pv [pv_core.c:300]: failed to parse
the R-URI
Jan 7 15:39:24 sp2 /usr/sbin/kamailio[13257]: ERROR: <core> [lvalue.c:347]: non
existing right pvar
Jan 7 15:39:24 sp2 /usr/sbin/kamailio[13257]: ERROR: <core> [action.c:777]: ERROR:
do_action: bad uri <sip::03581313184:03581313184@192.168.51.16>, dropping packet
Jan 7 15:39:24 sp2 /usr/sbin/kamailio[13257]: ERROR: <core> [action.c:1525]: run
action error at: :0
^^ Additionally the filename and line number in the above error message "run action
error at .." is missing. Please check.
More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=264
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