1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61
|
Rule:
--
Sid:
2494
--
Summary:
This event is generated when an attempt is made to exploit a known
vulnerability in the Microsoft RPC service.
--
Impact:
Denial of Service (DoS). Possible execution of arbitrary code leading to
unauthorized remote access to the victim host.
--
Detailed Information:
It may be possible for an attacker to cause a DoS condition in the
Microsoft RPC service when multiple simultaneous requests are made to a
vulnerable host. This can lead to an exhaustion of system resources
causing the DoS.
--
Affected Systems:
Windows systems running RPC services
--
Attack Scenarios:
An attacker may attempt to bind to the RPC service many times in an
attempt to cause the DoS condition to occur.
--
Ease of Attack:
Difficult.
--
False Positives:
None known.
--
False Negatives:
None known.
--
Corrective Action:
Block access to RPC ports 135, 139 and 445 for both TCP and UDP
protocols from external sources using a packet filtering firewall.
Apply the appropriate vendor supplied patches
--
Contributors:
Sourcefire Research Team
Matt Watchinski <mwatchinski@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>
--
Additional References:
--
|