VAR-200908-0149
Vulnerability from variot - Updated: 2023-12-18 13:09Siemens C450 IP and C475 IP VoIP devices allow remote attackers to cause a denial of service (disconnected calls and device reboot) via a crafted SIP packet to UDP port 5060. A remote attacker may exploit this issue to cause vulnerable devices to drop all current calls and reboot, resulting in a denial-of-service condition. Both Siemens C450IP and C475IP are popular VOIP phone devices. There is a loophole in the device processing malformed request data. ----------------------------------------------------------------------
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TITLE: Siemens C450IP / C475IP Denial of Service Vulnerability
SECUNIA ADVISORY ID: SA32827
VERIFY ADVISORY: http://secunia.com/advisories/32827/
CRITICAL: Moderately critical
IMPACT: DoS
WHERE:
From remote
OPERATING SYSTEM: Siemens C450IP http://secunia.com/advisories/product/20611/ Siemens C475IP http://secunia.com/advisories/product/20612/
DESCRIPTION: A vulnerability has been reported in Siemens C450IP / C475IP, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in the processing of SIP messages.
SOLUTION: Restrict network access to the device.
PROVIDED AND/OR DISCOVERED BY: sky & Any
ORIGINAL ADVISORY: http://milw0rm.com/exploits/7220
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
Subscribe: http://secunia.com/advisories/secunia_security_advisories/
Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/
Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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