VOIP: SIP Negative Content Length
This signature detects attempts to exploit a known vulnerability against SIP client. A successful attack can result in a denial-of-service condition. .
Extended Description
NCH Software Office Intercom is prone to a remote denial-of-service vulnerability because it fails to properly handle specially crafted SIP 'INVITE' requests. Exploiting this issue allows remote attackers to cause a denial-of-service due to a NULL-pointer dereference. Due to the nature of this issue, remote code execution may be possible; this has not been confirmed. Office Intercom 5.20 is vulnerable; other versions may also be affected.
Affected Products
Nch_software office_intercom
Short Name
VOIP:SIP:LIMITS:SIP-NEG-CNT-LEN
Severity
Minor
Recommended
False
Recommended Action
None
Category
VOIP
Keywords
Content Length Negative SIP bid:45049
Release Date
12/30/2010
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3375
False Positive
Unknown
Vendors
Nch_software