PORTMAPPER: RPC Wrong Direction
This protocol anomaly detects a remote procedure call (RPC) packet that flows in the wrong direction, preventing Portmapper from performing the UDP port to RPC program numbers conversion. RPC clients must send RPC calls; RPC servers must send RPC replies.
Extended Description
RPC call messages originating from a server, and RPC reply messages originating from clients, are protocol anomalies and should be detected.
References
BugTraq: 36564
URL: http://www.faqs.org/rfcs/rfc1050.html http://www.rfc-archive.org/getrfc.php?rfc=1050
Short Name
PORTMAPPER:ERR:WRONG-DIR
Severity
Major
Recommended
False
Recommended Action
None
Category
PORTMAPPER
Keywords
bid:36564
Release Date
04/22/2003
Supported Platforms
mx-19.3
vmx-19.3
vsrx-19.2
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-19.4
vsrx3bsd-19.4
srx-branch-19.4
vsrx-19.4
vmx-19.4
mx-19.4
srxevo-25.4
vsrx-26.2
srx-26.2
srx-branch-26.2
vsrx3bsd-26.2
mx-12.3
srx-12.3
srx-branch-12.3
vsrx-12.3
Sigpack Version
3324
False Positive
Unknown